The vpn connection failed due to an unexpected internal error encountered by the vpn client

Cisco: The VPN connection failed due to an unexpected error encountered by the VPN client

When I try to connect to a host, the Cisco AnyConnect Secure Mobility Client Version 4.3.01095, does not connect and gives a error popup like: The VPN connection failed due to an unexpected error encountered by the VPN client .

My OS is windows 7 ultimate 32 bit with SP1.

I could not find a solution at the Cisco site nor via googling.

1 Answer 1

Honestly my job used to have this error alot. Sometimes it would mean that the account was locked or the time deviated at some point and the server locked you out. When I crossed into the Mountain Time Zone from the Eastern one, I got this error a lot. I had to turn off automatic time zone set to get it to stop. I think changing the clock will often lock out your account.

With my job, they couldn’t figure it out so they unlocked it and gave me a new token which they synced up and I was fine after that.

The other option is to try Shrewsoft VPN which will let you load in those Cisco VPN pcf files. It really works pretty well for the price ($10). I used it in Win10 for a while until my job upgraded to AnyConnect which is far less problematic.

Related

Hot Network Questions

Subscribe to RSS

To subscribe to this RSS feed, copy and paste this URL into your RSS reader.

Site design / logo © 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA . rev 2023.1.11.43147

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.

Источник

How to resolve a «driver failure» error in the Cisco VPN client connecting from a Windows 7 client

I have recently upgraded my laptop from Windows Vista SP1 to Windows 7 Professional.

After the upgrade, if I try to use the Cisco VPN client to connect to a network, I get this message:

Prior to the upgrade, I was able to connect with no problems.

The version of the client I am using is 5.0.05.0290.

3 Answers 3

Here is a website on how to install Cisco VPN on Windows 7: How to (Successfully) Install Cisco VPN Client on Windows 7. There is even a comment at the end that someone using the same version as you has it working fine following the directions given (install the Citrix DNE Update).

Some users have reported success by

1. Uninstalling Cisco VPN
2. Rebooting
3. Re-installing Cisco VPN

You could try these steps — it worked for me in Vista when my Cisco VPN client threw up the same error message some time ago.

Also, if you have a BSOD after doing these steps, I refer you to this article :

You do not have to go through all that.

I have seen so many people go through this ridiculous process of uninstalling and reinstalling the VPN Client. Follow these and your life will be made a lot easier.

During the install or upgrade process, the uninstaller is not able to remove the old Cisco VPN LAN and thus creates a new one.

Solution 1:

1. Go to Start —> Settings —> Network Connections —> View Network Connections
2. On the listed Connections, you will find two Cisco Local Area Connections. The first will have a disabled Status, the second one will have a connected status.
3. Select the Cisco VPN LAN connection that has a connected status and disable it by right clicking and select disable

Solution 2:

1. Open Device Manager
2. Select Network Adapters
3. Uninstall the Cisco Adapter without the Disabled Icon (red top left icon)

Источник

Cisco VPN Client hangs at «Opening cert store»

I am unable to launch the Cisco VPN Client successfully. When the splash screen reaches the step labeled «Opening cert store», it simply hangs and goes unresponsive.

In the event viewer (eventvwr.exe) I found a warning stating:

The application (Cisco AnyConnect VPN Client, from vendor Cisco) has the following problem: To function properly, Cisco AnyConnect VPN Client must be reinstalled after you upgrade Windows.

Nothing else seemed to be amiss. Any good ideas on how to debug this further or solve the issue?

2 Answers 2

I finally found out what was causing this. A single answer by Chad Roeder on the Cisco support forums had the right solution:

1. Open Microsoft Management Console (type mmc in Run or search).
2. Add Snap-in «Certificates» (File -> Add/Remove Snap-in. -> [find and add «Certificates] -> Choose «My User account» -> OK)
3. Go to the folder Personal/Certificates
4. Remove any unwanted certificates (for me it was certificates added by Fiddler to enable SSL traffic debugging)
5. Consider repeating step 2-4 but using «Computer Account» instead of «My User account».

I hope this helps making the solution more visible in online searches. 🙂

To mitigate this issue within Fiddler, either use the Fiddler CertMaker Extension (which does not add the certificates to your store in the first place) or use the QuickExec box below the Fiddler Web Sessions list to run the following command:

Источник

Cisco AnyConnect Secure Mobility Client Administrator Guide, Release 4.10

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Book Title

Cisco AnyConnect Secure Mobility Client Administrator Guide, Release 4.10

Troubleshoot AnyConnect

View with Adobe Reader on a variety of devices

Results

Chapter: Troubleshoot AnyConnect

Troubleshoot AnyConnect

Gather Information for Troubleshooting

View Statistical Details

An administrator or end user can view statistical information for a current AnyConnect session.

Procedure

On Windows, navigate to Advanced Window > Statistics > VPN drawer . On Linux, click the Details button on the user GUI.

Choose from the following options, depending upon the packages that are loaded on the client computer.

• Export Stats —Saves the connection statistics to a text file for later analysis and debugging.
• Reset —Resets the connection information to zero. AnyConnect immediately begins collecting new data.
• Diagnostics —Launches the AnyConnect Diagnostics and Reporting Tool (DART) wizard which bundles specified log files and diagnostic information for analyzing and debugging the client connection.

Run DART to Gather Data for Troubleshooting

DART is the AnyConnect Diagnostics and Reporting Tool that you can use to collect data for troubleshooting AnyConnect installation and connection problems. DART assembles the logs, status, and diagnostic information for Cisco Technical Assistance Center (TAC) analysis.

The DART wizard runs on the device that runs AnyConnect . You can launch DART from AnyConnect , or by itself without AnyConnect .

DART requires administrator privileges on macOS, Ubuntu 18.04, and Red Hat 7 to collect logs.

Note

Also, for ISE posture only, you can automatically collect DART, if configured, as soon as an ISE posture crash occurs or when an endpoint goes to non-compliant. To enable Auto-DART, set the DARTCount to any non-zero value. When set to 0, the feature is disabled. Enabling Auto-DART prevents data loss due to time lapse. Gather the auto-collected DARTS at the following locations:

Windows: %LocalAppData%CiscoCisco AnyConnect Secure Mobility Client

The following operating systems are supported:

Procedure

For a Windows device, launch the AnyConnect Secure Mobility Client .

For a Linux device, choose Applications > Internet > Cisco DART

For a macOS device, choose Applications > Cisco > Cisco DART

Click the Statistics tab and then click Diagnostics .

Choose Default or Custom bundle creation.

Default—Includes the typical log files and diagnostic information, such as the AnyConnect log files, general information about the computer, and a summary of what DART did and did not do. The default name for the bundle is DARTBundle.zip , and it is saved to the local desktop.

Custom—Allows you to specify what files you want to include in the bundle (or the default files) and where to store the bundle.

Successful route and filtering changes for Linux and macOS will be kept out of the log so that you can better notice important events. Otherwise, with syslog event rate limiting, important events might drop off and be overlooked. Also, capture filtering settings enable you to see the system configuration file for macOS as well as the AnyConnect filtering configuration files. For Linux, iptables and ip6tables outputs are visible in DART even though access to most of these configuration is restricted unless the DART tool is run via sudo.

Default is the only option for macOS. You cannot customize which files to include in the bundle.

If you select Custom , you can configure which files to include in the bundle, and specify a different storage location for the file.

If DART seems to be taking a long time to gather the default list of files, click Cancel , re-run DART, and choose Custom , selecting fewer files.

If you chose Default , DART starts creating the bundle. If you chose Custom , continue following the wizard prompts to specify logs, preference files, diagnostic information, and any other customizations.

Expose UDID in DART

Within the DART CLI, you can display the client’s unique device identifier (UDID). For example, with Windows, go to the folder containing dartcli.exe (C:Program FilesCisco AnyConnect Secure Mobility Client ) and enter dartcli.exe -u or dartclie.exe -udid.

Collect Logs to Gather Data for Install or Uninstall Issues (for Windows)

If you have an install or uninstall failure with AnyConnect , you need to collect logs, because the DART collection does not have diagnostics for this.

Run the msiexec command in the same directory where you unzipped AnyConnect files:

• For install failures, enter where c:tempac-install.log? can be a filename of your choice.
• For uninstall failures, enter where c:tempac-uninstall.log? can be a filename of your choice.

For uninstall failures, you should use the MSI specific to the version currently installed.

You can alter the same commands above to capture information about any module on Windows which is not installing or uninstalling correctly.

Get Computer System Info

For Windows type msinfo32 /nfo c:msinfo.nfo .

Get Systeminfo File Dump

For Windows use the systeminfo command to gather info and store it in the txt file systeminfo > c:tempsysinfo.txt .

Check Registry File

An entry in the SetupAPI log file as below indicates a file cannot be found:

Make sure the HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRunOnce registry key exists. Without this registry key, all INF install packages are forbidden.

Location of AnyConnect Log Files

The logs are retained in the following files:

Windows— WindowsInfsetupapi.app.log or WindowsInfsetupapi.dev.log

Note

In Windows, you must make the hidden files visible.

If this is an initial web deployment install, the log file is located in the per-user temp directory:

If an upgrade was pushed from the gateway, the log file is in the following location:

Obtain the most recent file for the version of the client you want to install. The xxx varies depending on the version, and the yyyyyyyyyyyyyy specifies the date and time of the install.

macOS (10.12 and later)—the logging database; use Console app or log command to query logs for VPN, DART, or Umbrella

macOS (legacy file based log)— /var/log/system.log for all other modules

Linux Ubuntu— /var/log/syslog

Linux Red Hat— /var/log/messages

Run DART to Clear Troubleshooting Data

Procedure

Launch DART with administrator privileges.

Click Clear All Logs to start the clearing of the logs.

AnyConnect Connection or Disconnection Issues

AnyConnect Not Establishing Initial Connection or Not Disconnecting

Problem: AnyConnect will not establish initial connection, or you get unexpected results when you click Disconnect on the AnyConnect Secure Mobility Client window.

Solution: Check the following:

If you are using Citrix Advanced Gateway Client Version 2.2.1, remove the Citrix Advanced Gateway Client until the CtxLsp.dll issue is resolved by Citrix.

If you are using AT&T Communication Manager Version 6.2 or 6.7 with an AT&T Sierra Wireless 875 card, follow these steps to correct the problem:

1. Disable acceleration on the Aircard.
2. Launch AT&T communication manager > Tools > Settings > Acceleration > Startup.
3. Type manual.
4. Click Stop.

Obtain the config file from the Secure Firewall ASA to look for signs of a connection failure:

From the Secure Firewall ASA console, type write net x.x.x.x:ASA-Config.txt, where x.x.x.x is the IP address of the TFTP server on the network.

From the Secure Firewall ASA console, type show running-config. Cut and paste the config into a text editor and save.

View the Secure Firewall ASA event logs:

At the Secure Firewall ASA console, add the following lines to look at the ssl, webvpn, anyconnect, and auth events:

Attempt connection to AnyConnect , and when the connect error occurs, cut and paste the log information from the console into a text editor and save.

Type no logging enable to disable logging.

Obtain the AnyConnect Secure Mobility Client log from the client computer using the Windows Event Viewer.

1. Choose Start > Run and type eventvwr.msc /s .
2. Locate the AnyConnect Secure Mobility Client in the Applications and Services Logs (of Windows 7) and choose Save Log File As.. .
3. Assign a filename, for example, AnyConnectClientLog.evt . You must use the .evt file format.

Modify the Windows Diagnostic Debug Utility.

1. Attach the vpnagent.exe process as shown in the WinDbg documentation.
2. Determine if there is a conflict with the IPv6/IPv4 IP address assignments. Look in the event logs for any idenfied conflicts.

If a conflict was identified, add additional routing debugs to the registry of the client computer being used. These conflicts may appear in the AnyConnect event logs as follows:

On 32-bit Windows, the DWORD registry value must be HKEY_LOCAL_MACHINESOFTWARECiscoCisco AnyConnect Secure Mobility ClientDebugRoutesEnabled

On 64-bit Windows, the DWORD registry value must be HKEY_LOCAL_MACHINESoftwareWOW6432nodeCiscoCisco AnyConnect Secure Mobility ClientDebugRoutesEnabled

On Linux or macOS, create a file in the following path using the sudo touch command: /opt/cisco/anyconnect/debugroutes

Note

The key or file is deleted when the tunnel connection is started. The value of the key or content of the file is not important as the existence of the key or file is sufficient to enable debugging.

Start a VPN connection. When this key or file is found, two route debug text files are created in the system temp directory (usually C:WindowsTemp on Windows and /opt/cisco/anyconnect on macOS or Linux). The two files (debug_routechangesv4.txt4 and debug_routechangesv6.txt) are overwritten if they already exist.

AnyConnect Not Passing Traffic

Problem: AnyConnect cannot send data to the private network once connected.

Solution: Check the following:

If you are using AT&T Communication Manager Version 6.2 or 6.7 with an AT&T Sierra Wireless 875 card, follow these steps to correct the problem:

1. Disable acceleration on the Aircard.
2. Launch AT&T communication manager > Tools > Settings > Acceleration > Startup.
3. Type manual.
4. Click Stop.

Obtain the output of the show vpn-sessiondb detail anyconnect filter name command. If the output specifies Filter Name: XXXXX, get the output for the show access-list XXXXX command as well. Verify that the ACL is not blocking the intended traffic flow.

Obtain the DART file or the output from AnyConnect Secure Mobility Client > Statistics > Details > Export (AnyConnect-ExportedStats.txt). Observe the statistics, interfaces, and routing table.

Check the Secure Firewall ASA config file for NAT statements. If NAT is enabled, you must exempt data returning to the client from network address translation. For example, to NAT exempt the IP addresses from the AnyConnect pool, the following code would be used:

Verify whether the tunneled default gateway is enabled for the setup. The traditional default gateway is the gateway of last resort for non-decrypted traffic:

If a VPN client needs to access a resource that is not in the routing table of the VPN gateway, packets are routed by the standard default gateway. The VPN gateway does not need to have the whole internal routing table. If you use a tunneled keyword, the route handles decrypted traffic coming from IPsec/SSL VPN connection. Standard traffic routes to 209.165.200.225 as a last resort, while traffic coming from the VPN routes to 10.0.4.2 and is decrypted.

Collect a text dump of ipconfig /all and a route print output before and after establishing a tunnel with AnyConnect .

Perform a network packet capture on the client or enable a capture on the Secure Firewall ASA.

Note

If some applications (such as Microsoft Outlook) do not operate with the tunnel, ping a known device in the network with a scaling set of pings to see what size gets accepted (for example, ping -| 500, ping -| 1000, ping -| 1500, and ping -| 2000). The ping results provide clues to the fragmentation issues in the network. Then you can configure a special group for users who might experience fragmentation and set the anyconnect mtu for this group to 1200. You can also copy the Set MTU.exe utility from the old IPsec client and force the physical adapter MTU to 1300. Upon reboot, see if you notice a difference.

Connectivity Issues with VM-based Subsystems

If you experience connectivity issues with Windows Subsystem for Linux (WSL2) or VMware Fusion VM when the AnyConnect VPN is active on the host (Windows 10 or macOS 11 (and later), follow these steps to configure Local LAN split exclude tunneling restricted to only virtual adapter subnets.

Procedure

In ASDM, navigate to Configuration > Remote Access VPN > Network (Client) Access > Advanced > AnyConnect Custom Attributes to configure a new custom attribute type.

Choose Add and set the following in the Create Custom Attribute pane:

Enter BypassVirtualSubnetsOnlyV4 for IPv4 or BypassVirtualSubnetsOnlyV6 for IPv6 as the new type.

Optionally, enter a description.

Set the name and value to true in AnyConnect Custom Attributes Names.

If the local LAN wildcard split exclude is already configured in the group policy for a certain IP protocol, it is restricted by the client to only virtual subnets, provided that the custom attribute is enabled for the same IP protocol. If the local LAN wildcard split exclude is not configured in the group policy, it is added by the client for the IP protocol(s) with the custom attribute enabled, resulting in restricted local LAN split exclude being enforced accordingly. With no other split-exclude networks configured, all physical adapter traffic is tunneled, similar to the tunnel-all configuration.

Attach the previously created custom attribute type and name to a group policy via Configuration > Remote Access VPN > Network (Client) Access > Group Policies > Edit >Advanced > AnyConnect Client > Custom Attributes .

What to do next

To verify if the attribute value was set correctly, check the AnyConnect logs for a message starting with «Received VPN Session Configuration.» It should say that local LAN Wildcard is limited to virtual subnets.

VPN Service Failures

VPN Service Connection Fails

Problem: You receive an “Unable to Proceed, Cannot Connect to the VPN Service” message. The VPN service for AnyConnect is not running.

Solution: Determine if another application conflicted with the service. See Determine What Conflicted With Service, page 11-7.

Determine What Conflicted With Service

The following procedure determines if the conflict is with the initialization of the server at boot-up or with another running service, for example, because the service failed to start.

Procedure

Check the services under the Windows Administration Tools to ensure that the AnyConnect VPN Agent is not running. If it is running and the error message still appears, another VPN application on the workstation may need disabled or even uninstalled. After taking that action, reboot, and repeat this step.

Try to start the AnyConnect VPN Agent.

Check the AnyConnect logs in the Event Viewer for any messages stating that the service was unable to start. Notice the timestamps of the manual restart from Step 2, as well as when the workstation was booted up.

Check the System and Application logs in the Event Viewer for the same general time stamps of any messages of conflict.

If the logs indicate a failure starting the service, look for other information messages around the same time stamp which indicate one of the following:

a missing file—reinstall AnyConnect from a standalone MSI installation to rule out a missing file.

a delay in another dependent service—disable startup activities to speed up the workstation’s boot time.

a conflict with another application or service—determine whether another service is listening on the same port as the port the vpnagent is using or if some HIDS software is blocking our software from listening on a port.

If the logs do not point directly to a cause, use the trial and error method to identify the conflict. When the most likely candidates are identified, disable those services (such as VPN products, HIDS software, spybot cleaners, sniffers, antivirus software, and so on) from the Services panel.

Reboot. If the VPN Agent service still fails to start, start turning off services that were not installed by a default installation of the operating system.

VPN Client Driver Encounters Error (after a Microsoft Windows Update)

Problem: If you recently updated the Microsoft certclass.inf file, the following message is encountered when trying to establish a VPN connection:

If you check the C:WINDOWSsetupapi.log, you can see the following error:

Solution: Check which updates have recently been installed by entering C:>systeminfo at the command prompt or checking the C:WINDOWSWindowsUpdate.log. Follow the instructions to repair the VPN driver.

Repair VPN Client Driver Error

Even though the steps taken above may indicate that the catalog is not corrupt, the key file(s) may still have been overwritten with an unsigned one. If the failure still occurs, open a case with Microsoft to determine why the driver signing database is being corrupted.

Procedure

Open a command prompt as an admin.

Enter net stop CryptSvc .

Analyze the database to verify its validity by entering esentutl /g %systemroot%System32catroot2\catdb or rename the following directory: %/WINDIR%system32catroot2 to catroot2_old.

When prompted, choose OK to attempt the repair. Exit the command prompt and reboot.

Driver Crashes

Fix Driver Crashes in VPNVA.sys

Problem: VPNVA.sys driver crashes.

Solution: Find any intermediate drivers that are bound to the AnyConnect Virtual Adapter and uncheck them.

Fix Driver Crashes in vpnagent.exe

Procedure

Create a directory called c:vpnagent.

Look at the Process tab in the Task Manager and determine the PID of the process in vpnagent.exe.

Open a command prompt and change to the directory where you installed the debugging tools. By default, the debugging tools for Windows are located in C:Program FilesDebugging Tools .

Type cscript vpnagent4.vbs -crash -p PID -o c:vpnagent -nodumponfirst , where PID is the PID of vpnagent.exe .

Let the open window run in minimized state. You cannot log off of the system while you are monitoring.

When the crash occurs, collect the contents of c:vpnagent in a zip file.

Use !analyze -v to further diagnose the crashdmp file.

Link/Driver Issues with Network Access Manager

If the Network Access Manager fails to recognize your wired adapter, try unplugging your network cable and reinserting it. If this does not work, you may have a link issue. The Network Access Manager may not be able to determine the correct link state of your adapter. Check the Connection Properties of your NIC driver. You may have a «Wait for Link» option in the Advanced Panel. When the setting is On, the wired NIC driver initialization code waits for auto negotiation to complete and then determines if a link is present.

Other Crashes

AnyConnect Crashes

Problem: You received a “the system has recovered from a serious error” message after a reboot.

Solution: Gather the .log and .dmp generated files from the %temp% directory (such as C:DOCUME

1Temp). Copy the files or back them up. See How to Back Up .log or .dmp Files, page 11-9.

How to Back Up .log or .dmp Files

Procedure

Run the Microsoft utility called Dr. Watson (Drwtsn32.exe) from the Start > Run menu.

Configure the following and click OK :

On the client device, get the AnyConnect VPN client log from the Windows Event Viewer by entering eventvwr.msc /s at the Start > Run menu.

Locate the AnyConnect in the Applications and Services Logs (of Windows) and choose Save Log File As.. . Assign a filename such as AnyConnectClientLog.evt in the .evt file format.

AnyConnect Crashes in vpndownloader (Layered Service Provider (LSP) Modules and NOD32 AV)

Problem: When AnyConnect attempts to establish a connection, it authenticates successfully and builds the ssl session, but then it crashes in the vpndownloader if using LSP or NOD32 AV.

Solution: Remove the Internet Monitor component in version 2.7 and upgrade to version 3.0 of ESET NOD32 AV.

Blue Screen (AT & T Dialer)

Problem: If you are using an AT&T Dialer, the client operating system sometimes experiences a blue screen, which causes the creation of a mini dump file.

Solution: Upgrade to the latest 7.6.2 AT&T Global Network Client.

Security Alerts

Microsoft Internet Explorer Security Alert

Problem: A security alert window appears in Microsoft Internet Explorer with the following text:

Solution: This alert may appear when connecting to a Secure Firewall ASA that is is not recognized as a trusted site. To prevent this alert, install a trusted root certificate on a client. See Install Trusted Root Certificates on a Client, page 11-10.

«Certified by an Unknown Authority» Alert

Problem: A “Web Site Certified by an Unknown Authority” alert window may appear in the browser. The upper half of the Security Alert window shows the following text:

Solution: This security alert may appear when connecting to a Secure Firewall ASA that is not recognized as a trusted site. To prevent this alert, install a trusted root certificate on a client. See Install Trusted Root Certificates on a Client, page 11-10.

Install Trusted Root Certificates on a Client

Before you begin

Generate or obtain the certificate to be used as the trusted root certificate.

Note

Step 3

You can avoid security certificate warnings in the short term by installing a self-signed certificate as a trusted root certificate on the client. However, we do not recommend this because of the possibility that a user could inadvertently configure a browser to trust a certificate on a rogue server and because of the inconvenience to users of having to respond to a security warning when connecting to your secure gateway.

Procedure

Click View Certificate in the Security Alert window.

Click Install Certificate .

Select Place all certificates in the following store.

In the drop-down list, choose Trusted Root Certification Authorities.

Continue following the Certificate Import wizard prompts.

Dropped Connections

Wireless Connection Drops When Wired Connection is Introduced (Juniper Odyssey Client)

Problem: When wireless suppression is enabled on an Odyssey client, the wireless connection drops if a wired connection is introduced. With wireless suppression disabled, the wireless operates as expected.

Configure the Odyssey Client

Procedure

In Network Connections, copy the name of the adapter as it appears in its connection properties. If you edit the registry, perform a backup before making any changes and use caution as serious problems can occur if modified incorrectly.

Open the registry and go to HKEY_LOCAL_MACHINESOFTWAREFunk Software, Inc.odysseyclientconfigurationoptionsadapterTypevirtual.

Create a new string value under virtual. Copy the name of the adapter from Network properties into the registry portion. The additional registry settings, once saved, are ported over when a customer MSI is created and is pushed down to other clients.

Connections to the Secure Firewall ASA Fail (Kaspersky AV Workstation 6.x)

Problem: When Kaspersky 6.0.3 is installed (even if disabled), AnyConnect connections to the Secure Firewall ASA fail right after CSTP state = CONNECTED. The following message appears:

Solution: Uninstall Kaspersky and refer to their forums for additional updates.

No UDP DTLS Connection (McAfee Firewall 5)

Problem: When using McAfee Firewall 5, a UDP DTLS connection cannot be established.

Solution: In the McAfee Firewall central console, choose Advanced Tasks > Advanced options and Logging and uncheck the Block incoming fragments automatically checkbox in McAfee Firewall.

Connection to the Host Device Fails (Microsoft Routing and Remote Access Server)

Problem: If you are using RRAS, the following termination error is returned to the event log when AnyConnect attempts to establish a connection to the host device:

Solution: Disable the RRAS service.

Failed Connection/Lack of Credentials (Load Balancers)

Problem: The connection fails due to lack of credentials.

Solution: The third-party load balancer has no insight into the load on the Secure Firewall ASA devices. Because the load balance functionality in the ASA is intelligent enough to evenly distribute the VPN load across the devices, we recommend using the internal Secure Firewall ASA load balancing instead.

Installation Failures

Do Not Edit Windows Registry Without Root Cause

If you are receiving a failure while installing, uninstalling, or upgrading AnyConnect , we do not recommend modifying the Windows Installer registry keys directly, because it can lead to undesired consequences. Microsoft-provided tools can troubleshoot installer issues after proper root cause is determined.

AnyConnect Fails to Download (Wave EMBASSY Trust Suite)

Problem: AnyConnect fails to download and produces the following error message:

Solution: Upload the patch update to version 1.2.1.38 to resolve all dll issues.

Incompatability Issues

Failure to Update the Routing Table (Bonjour Printing Service)

Problem: If you are using Bonjour Printing Services, the AnyConnect event logs indicate a failure to identify the IP forwarding table.

Solution: Disable the BonJour Printing Service by typing net stop “bonjour service” at the command prompt. A new version of mDNSResponder (1.0.5.11) has been produced by Apple. To resolve this issue, a new version of Bonjour is bundled with iTunes and made available as a separate download from the Apple web site.

Version of TUN is Incompatible (OpenVPN Client)

Problem: An error indicates that the version of TUN is already installed on this system and is incompatible with the AnyConnect .

Solution: Uninstall the Viscosity OpenVPN Client.

Winsock Catalog Conflict (LSP Symptom 2 Conflict)

Problem: If an LSP module is present on the client, a Winsock catalog conflict may occur.

Solution: Uninstall the LSP module.

Slow Data Throughput (LSP Symptom 3 Conflict)

Problem: Slow data throughput may occur with the use of NOD32 Antivirus V4.0.468 x64 using Windows.

Solution: Disable SSL protocol scanning. See Disable SSL Protocol Scanning.

Disable SSL Protocol Scanning

Procedure

Go to Protocol Filtering > SSL in the Advanced Setup and enable SSL protocol scanning.

Go to Web access protection > HTTP, HTTPS and check Do not use HTTPS protocol checking .

Go back to Protocol filtering > SSL and disable SSL protocol scanning.

DPD Failure (EVDO Wireless Cards and Venturi Driver)

Problem: If you are using a EVDO wireless card and Venturi driver while a client disconnect occurred, the event log reports the following:

Check the Application, System, and AnyConnect event logs for a relating disconnect event and determine if a NIC card reset was applied at the same time.

Ensure that the Venturi driver is up to date. Disable Use Rules Engine in the 6.7 version of the AT&T Communications Manager.

DTLS Traffic Failing (DSL Router)

Problem: If you are connecting with a DSL router, DTLS traffic may fail even if successfully negotiated.

Solution: Connect to a Linksys router with factory settings. This setting allows a stable DTLS session and no interruption in pings. Add a rule to allow DTLS return traffic.

NETINTERFACE_ERROR (CheckPoint and other Third-Party Software such as Kaspersky)

Problem: When attempting to retrieve operating system information on the computer’s network used to make the SSL connection, the AnyConnect log may indicate a failure to fully establish a connection to the secure gateway.

If you are uninstalling the Integrity Agent and then installing AnyConnect , enable TCP/IP.

Ensure that if you disable SmartDefense on Integrity agent installation, TCP/IP is checked.

If third-party software is intercepting or otherwise blocking the operating system API calls while retrieving network interface information, check for any suspect AV, FW, AS, and such.

Confirm that only one instance of the AnyConnect adapter appears in the Device Manager. If there is only one instance, authenticate with AnyConnect , and after 5 seconds, manually enable the adapter from the Device Manager.

If any suspect drivers have been enabled within the AnyConnect adapter, disable them by unchecking them in the Connection window of AnyConnect .

Performance Issues (Virtual Machine Network Service Drivers)

Problem: When using AnyConnect on some Virtual Machine Network Service devices, performance issues have resulted.

Solution: Uncheck the binding for all IM devices within the AnyConnect virtual adapter. The application dsagent.exe resides in C:WindowsSystemdgagent. Although it does not appear in the process list, you can see it by opening sockets with TCPview (sysinternals). When you terminate this process, normal operation of AnyConnect returns.

Known Third-Party Application Conflicts

The following third-party applications have known complications with AnyConnect Secure Mobility Client :

Adobe and Apple—Bonjour Printing Service

Adobe Creative Suite 3

BonJour Printing Service

AT&T Communications Manager Versions 6.2 and 6.7

AT&T Sierra Wireless 875 card

AT&T Global Dialer

CheckPoint and other Third-Party Software such as Kaspersky

Cisco AnyConnect Secure Mobility Client for Apple iOS on Apple M1 devices running the same time as Cisco AnyConnect Secure Mobility Client on macOS

Cisco AnyConnect Secure Mobility Client on Universal Windows Platform

Citrix Advanced Gateway Client Version 2.2.1

EVDO Wireless Cards and Venturi Driver

Third-party firewalls can interfere with the firewall function configured on the Secure Firewall ASA group policy.

Juniper Odyssey Client

Kaspersky AV Workstation 6.x

Layered Service Provider (LSP) Modules and NOD32 AV

Источник

Adblock
detector

Note

«Ошибка: аутентификация не удалась» – ExpressVPN

«VPN-соединение: аутентификация пользователя не удалась» – NordVPN

Вы не одиноки, когда сталкиваетесь с ошибкой «VPN Authentication Failed» – это одна из наиболее часто сообщаемых проблем VPN. Как пользователь VPN, я знаю, как важно оставаться защищенным в сети, а не идти на компромисс в отношении безопасности. Так что не волнуйтесь – я придумала 11 методов, которые вы можете использовать, чтобы исправить эту ошибку и быстро восстановить и запустить VPN .

Сообщения об ошибках проверки подлинности на NordVPN и ExpressVPN

1. Перезагрузите компьютер

Иногда самые простые решения являются лучшими. Как и многие технические проблемы, ошибку «VPN Authentication Failed» иногда можно решить, перезагрузив устройство . Это очищает кэш памяти и останавливает любой код, который не работает должным образом, чтобы VPN мог начать заново.

2. Отключите ваш брандмауэр

Если вы используете брандмауэр, он может блокировать ваш VPN-клиент. Чтобы выяснить, является ли это проблемой, вам нужно временно отключить брандмауэр, чтобы убедиться, что он что-то исправляет . Убедитесь, что вы отключили как сторонние, так и встроенные брандмауэры (например, брандмауэр Защитника Windows). Это необходимо сделать для публичных и частных сетей – эта опция должна быть в настройках вашего брандмауэра.

Это не постоянное решение, и отключение брандмауэра может сделать ваш компьютер уязвимым для угроз безопасности. Если проблема связана с вашим брандмауэром, вам нужно изменить настройки или переключиться на другой брандмауэр .

3. Попробуйте проводное соединение

Иногда проблемы с вашим маршрутизатором могут помешать правильному подключению VPN . Это не часто, но это случается, особенно если вы используете два связанных маршрутизатора. Попробуйте подключиться к маршрутизатору с помощью кабеля Ethernet вместо беспроводного подключения и посмотрите, решит ли это проблему.

Если использование двух маршрутизаторов вызывает проблемы, вы можете исправить это, включив режим моста . Метод для этого варьируется в зависимости от модели, поэтому проверьте руководство вашего маршрутизатора.

4. Используйте другой протокол VPN

В большинстве VPN вы можете выбрать, какой протокол IP использовать . Наиболее распространенными являются TCP (протокол управления передачей) и UDP (протокол пользовательских дейтаграмм). Основное отличие состоит в том, что TCP включает исправление ошибок , то есть он отправляет все, что повреждено или не получено из-за проблем с соединением. Поскольку UDP этого не делает, он быстрее, но может быть менее надежным.

Переключение между протоколами может устранить ошибку «VPN Authentication Failed» , ускоряя ваше соединение, особенно если вы переходите с TCP на UDP . Вы найдете эту опцию в настройках вашего VPN-приложения. Обратите внимание, что качество вашего соединения может ухудшиться, если вы переключите протоколы.

5. Попробуйте альтернативный DNS-сервер

По умолчанию ваш VPN-клиент, вероятно, будет использовать DNS-серверы вашего VPN-провайдера. Это снижает риск утечек DNS, но иногда вызывает проблемы с подключением . Чтобы проверить, является ли это проблемой, попробуйте использовать другие DNS-серверы . В настройках вашего VPN-приложения вам нужно отключить опцию «Использовать только DNS-серверы VPN». Имейте в виду, что это может немного увеличить риск утечки DNS.

6. Попробуйте другую сеть WiFi

Если ни одно из предыдущих решений не помогло вам, возможно, проблема в вашей сети Wi-Fi. Чтобы узнать, так ли это, попробуйте использовать VPN в общедоступной точке доступа WiFi или в доме друга . Если VPN работает в этих других сетях, ваша проблема может быть в этом. Взгляните на настройки Интернета и WiFi и попытайтесь определить причины проблем с VPN.

7. Подключитесь к другому серверу VPN

Если вы пытаетесь подключиться, возможно, сервер VPN, который вы используете, слишком медленный или имеет слишком много пользователей . Большинство приложений VPN позволяют выбирать между несколькими серверами в каждом доступном месте. Попробуйте перейти на другой и посмотреть, поможет ли это.

Помните, что чем ближе вы находитесь к серверу, тем быстрее он будет . Например, если вы находитесь в Европе и вам необходимо подключиться к американскому серверу, серверы на восточном побережье должны быть быстрее, чем на западе.

Если вы используете VPN на своем маршрутизаторе, а не через клиент на вашем устройстве, переключение между серверами более сложное . Способ зависит от вашего роутера и провайдера VPN. Если вы не уверены, как это сделать, проверьте документацию для вашего маршрутизатора и VPN .

8. Переустановите свой VPN

Поврежденная установка вашей VPN может привести к ошибке «VPN Authentication Failed» . Если вы подозреваете, что это может быть проблемой, попробуйте удалить и переустановить VPN-клиент . Избегайте других ошибок, используя программное обеспечение для удаления, чтобы удалить все записи реестра и файлы из первой установки.

9. Убедитесь, что ваша VPN-подписка активна

Если вы используете платный VPN-сервис, срок действия вашей подписки истек . Кроме того, вы, возможно, создали учетную запись, но еще не купили подписку.

Чтобы решить эту проблему, войдите в свою учетную запись на веб-сайте вашего провайдера VPN и убедитесь, что ваша подписка была оплачена .

10. Убедитесь, что не слишком много одновременных подключений

Большинство VPN-сервисов ограничивают количество устройств, которые могут быть подключены к VPN одновременно . Если вы подключили несколько устройств, возможно, вы превысили лимит. Посетите веб-сайт вашего поставщика услуг VPN, чтобы подтвердить количество одновременных подключений. Если вы превысили лимит, отключите все устройства, которые вы не используете .

11. Попробуйте лучше VPN

Если вы перепробовали все вышеперечисленные решения и у вас все еще есть проблемы, вы можете подумать о более качественном VPN-сервисе . Бесплатные VPN более низкого уровня могут быть медленными и подвержены другим проблемам с подключением. Напротив, услуги премиум-класса очень быстрые и гораздо реже вызывают проблемы . Например, ExpressVPN предлагает неограниченную пропускную способность и имеет встроенную функцию проверки скорости, которая поможет вам выбрать самый быстрый сервер.

Для тех, кто ограничен в бюджете, NordVPN имеет много тех же функций, что и ExpressVPN, по более доступной цене . Сервис не такой быстрый, но он известен своей надежностью. Или, если вы смотрите много онлайн-контента, вы можете попробовать CyberGhost . Компания гарантирует, что вы всегда будете подключены к самому быстрому доступному серверу, а также имеет серверы, оптимизированные для различных потоковых сервисов .

Все эти VPN предоставляют гарантии возврата денег, так что вы можете попробовать их некоторое время и получить полный возврат средств, если вы не удовлетворены .

Получите лучший VPN сейчас!

Вывод

Ошибка «VPN Authentication Failed» может быть распространена, но исправить ее просто. С этими решениями вы скоро снова будете в безопасности.

Испытываете другие проблемы с подключением? Ознакомьтесь с этим руководством по исправлению наиболее распространенных кодов ошибок VPN .

Статья была переведена для сайта https://vpn.inform.click
Источник: www.wizcase.com

Исправлено: AnyConnect не смог установить соединение с указанным безопасным шлюзом —

Сообщение об ошибке ‘AnyConnect не смог установить соединение с указанным безопасным шлюзом’Появляется, когда пользователи пытаются подключиться к VPN с помощью клиента AnyConnect. Эта проблема возникает из-за того, что VPN-клиент AnyConnect не может успешно выполнить процесс соединения с удаленным сервером, и на его пути существуют некоторые блокировки. Сегодня мы рассмотрим упомянутое сообщение об ошибке, включая причины сообщения об ошибке и различные решения, которые вы можете реализовать, чтобы избавиться от ошибки.

AnyConnect не смог установить соединение с указанным безопасным шлюзом

По какой причине AnyConnect не смогла установить соединение с указанным сообщением об ошибке безопасного шлюза?

Это может быть связано со многими причинами. Иногда это блокировка антивирусом или брандмауэром, а иногда это может быть вызвано плохим подключением к Интернету. Следующее будет основными причинами; упомянуть вкратце —

• Проблема с антивирусом или брандмауэром: Антивирусное программное обеспечение может иногда вмешиваться в процесс подключения VPN-клиента AnyConnect и не разрешать ему подключаться к внешним сетям или серверам по соображениям безопасности. Много раз это заблокирует много входящих и исходящих соединений. Таким образом, вы не сможете подключиться к своему любимому VPN с помощью Anyconnect.
• Неправильная конфигурация клиента: Если вы неправильно настроили свой клиент Anyconnect и сохраненные в нем конфигурации VPN неверны, тогда вы столкнетесь с проблемами при установлении успешных соединений.
• Интернет ограничения: Время от времени ваш провайдер может заблокировать IP-адреса некоторых стран, и вы не можете сознательно пытаться подключиться к VPN той же страны, которая была заблокирована вашим провайдером. Тогда вы столкнетесь с проблемами.

Чтобы обойти сообщение об ошибке, вы можете следовать решениям, приведенным ниже.

Решение 1. Отключение антивируса

Обо всем по порядку. Поскольку в большинстве случаев проблема вызвана антивирусной блокировкой, которая является распространенным сценарием. Поэтому, в таком случае, вы должны попытаться отключить любой сторонний антивирус, который вы установили в своей системе, а затем попытаться подключиться к VPN с помощью AnyConnect. Надеюсь, это изолирует проблему.

Отключить антивирус

Решение 2. Остановите службу подключения к Интернету

Иногда служба ICS работает, что вызывает проблемы для клиента AnyConnect, чтобы соединиться с VPN. Вам придется отключить его, чтобы решить проблему. Вот как отключить службу:

1. Нажмите Windows + R и введите services.msc
2. Когда откроется окно с сервисами, выполните поиск Общий доступ к интернету оказание услуг. Щелкните правой кнопкой мыши и выберите Стоп.
   Остановка службы ICS
3. Затем выйдите из Сервисы окна, закрыв его.

Решение 3. Отключите общий доступ к подключению к Интернету (ICS)

Было несколько случаев, когда ICS был включен в Windows, тогда пользователи сталкивались с этой проблемой. Чтобы отключить ICS, следуйте инструкциям ниже:

1. Откройте панель управления
2. Идти к Сеть и Интернет-обмен а затем нажмите Смените настройки адаптера.
   Центр коммуникаций и передачи данных
3. После этого вам нужно будет щелкнуть правой кнопкой мыши на подключение к общей сети, а затем нажмите на свойства.
4. В окне свойств нажмите на разделение
5. Оказавшись там, вы должны снять флажок с надписью «Разрешить другим пользователям сети подключаться к Интернету через этот компьютер».
6. После этого нажмите ОК.

Если ваша проблема была вызвана включением ICS, то это должно быть исправлено.

Решение 4. Выберите опцию Подключиться к текущей сети в AnyConnect VPN.

Иногда VPN-клиент Any Connect колеблется между разными сетями, поэтому вам нужно выбрать вариант подключения только к текущей сети. Это может решить проблему для вас. Вот как это сделать:

1. Открой Клиент AnyConnect, и где вы видите сеть написано, щелкните правой кнопкой мыши на нем.
2. Нажмите на «Подключаться только к текущей сети».
   Клиент Cisco AnyConnect

Решение 5. Попробуйте альтернативное соединение

Время от времени используемое вами интернет-соединение может иметь некоторые ограничения или работать неправильно, что является причиной проблемы. В таком случае вам придется использовать альтернативное соединение, например, WiFi или мобильную точку доступа, чтобы узнать, сможете ли вы подключиться к VPN.

Источник

Ошибка Cisco AnyConnect Попытка подключения не удалась

Некоторые пользователи Windows 10, которые регулярно используют инструмент Cisco AnyConnect, сталкивались с ошибкой, которая называется «Сбой попытки подключения». Обычно это происходит, когда вы пытаетесь запустить виртуальную частную сеть (VPN), но не беспокойтесь, потому что есть способы решить эту проблему. Это также может быть связано с проблемой сети или ПК, и вас просят проверить подключение к Интернету и повторить попытку.

Ошибка Cisco AnyConnect Попытка подключения не удалась

Надеюсь, однажды будет выпущено настоящее исправление, которое решит проблему раз и навсегда. Но пока мы предлагаем пока следовать нашему примеру.

1. Откройте Cisco AnyConnect в режиме совместимости
2. Отключить Microsoft Hyper V в Windows 10
3. Отключить общий доступ к подключению к Интернету

Давайте обсудим это более подробно.

1]Откройте Cisco AnyConnect в режиме совместимости

Программы для Windows, мобильные приложения, игры — ВСЁ БЕСПЛАТНО, в нашем закрытом телеграмм канале — Подписывайтесь:)

Для этого вы должны сначала создать первичный исполняемый файл. Не все знают, как это сделать, поэтому, если вы подпадаете под эту категорию, вам нужно открыть проводник и перейти в следующее место:

C: Program Files (x86) Cisco Cisco AnyConnect Secure Mobility Client

После доступа к папке щелкните правой кнопкой мыши vpnui.exe и выберите «Свойства».

Оттуда перейдите в Совместимость> Режим совместимости. Наконец, установите флажок «Запустить эту программу в режиме совместимости для.

Выберите из списка Windows 8 или Windows 7, затем нажмите «Применить»> «ОК».

Перезагрузите компьютер, затем попытайтесь запустить Cisco AnyConnect еще раз, чтобы увидеть, появляется ли по-прежнему ошибка попытки подключения.

2]Отключить Microsoft Hyper V в Windows 10

Еще один способ решить проблему сбоя попытки подключения — отключить Hyper V в Windows 10. Есть три простых шага, которые можно предпринять, чтобы отключить Hyper V.

Как вы увидите из статьи, есть несколько способов отключить Hyper V, поэтому используйте тот, который лучше всего подходит для вас.

3]Отключить общий доступ к подключению к Интернету

Если вышеперечисленные параметры не работают, следующим шагом будет отключить общий доступ к подключению к Интернету из Windows 10. Это довольно просто, и вы узнаете все, что вам нужно знать, прочитав каждое слово.

ЧИТАЙТЕ: Инструмент моделирования сети Cisco Packet Tracer и его бесплатные альтернативы.

.

Программы для Windows, мобильные приложения, игры — ВСЁ БЕСПЛАТНО, в нашем закрытом телеграмм канале — Подписывайтесь:)

Источник

Как исправить ошибку агента клиента VPN для Cisco AnyConnect

Как исправить ошибку агента клиента VPN для Cisco AnyConnect

Cisco AnyConnect — это программное обеспечение VPN, которое включает расширенную защиту для блокировки вредоносных программ на конечных точках. Однако некоторые пользователи говорят, что не могут установить или запустить Cisco AnyConnect. Когда они пытаются установить или запустить AnyConnect, появляется сообщение об ошибке, в котором говорится, что агент клиента VPN не смог создать хранилище межпроцессного взаимодействия . Пользователи исправили это сообщение об ошибке с разрешениями ниже.

Как пользователи могут исправить ошибку агента клиента VPN?

1. Отключите общий доступ к Интернету

1. Отключение общего доступа к интернет-подключению является одним из наиболее распространенных исправлений для ошибки агента клиента VPN. Для этого нажмите сочетание клавиш Windows + R, которое открывает аксессуар «Запуск».
2. Введите ‘control.exe / имя Microsoft.NetworkAndSharingCenter’ в поле Открыть.
3. Нажмите кнопку ОК , чтобы открыть апплет Панели управления Центром управления сетями и общим доступом.
4. Нажмите Изменить настройки адаптера в левой части апплета панели управления.
5. Щелкните правой кнопкой мыши сетевое соединение с общим состоянием, чтобы выбрать « Свойства» .
6. Затем выберите вкладку «Общий доступ», показанную на снимке ниже.
7. Снимите флажок Разрешить другим пользователям подключаться к Интернету через этот компьютер .
8. Нажмите кнопку ОК .
9. Повторите вышеуказанные шаги для всех сетевых подключений с включенным общим доступом.
10. Перезагрузите Windows после отключения общего доступа к соединению.

2. Отключите службу ICS

1. Или попробуйте отключить службу ICS. Откройте аксессуар «Выполнить» в Windows.
2. Введите «services.msc» в поле «Открыть» и выберите опцию « ОК» .
3. Щелкните правой кнопкой мыши службу общего доступа к Интернету, указанную в окне «Службы», и выберите « Остановить» .
4. Дважды щелкните Internet Connection Sharing, чтобы открыть окно его свойств.
5. Щелкните раскрывающееся меню «Тип запуска», чтобы выбрать параметр « Отключено» .
6. Не забудьте нажать кнопку Применить .
7. Затем нажмите OK, чтобы выйти из окна.
8. После этого перезапустите Windows после выключения службы ICS.

Это два подтвержденных решения, которые исправили ошибку агента клиента VPN для пользователей Cisco AnyConnect. После исправления ошибки пользователи могут установить или запустить Cisco AnyConnect.

СВЯЗАННЫЕ СТАТЬИ, ЧТОБЫ ПРОВЕРИТЬ:

Источник

AnyConnect VPN Client Troubleshooting Guide — Common Problems

Available Languages

Download Options

Bias-Free Language

The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.

Contents

Introduction

This document describes a troubleshooting scenario which applies to applications that do not work through the Cisco AnyConnect VPN Client.

Prerequisites

Requirements

There are no specific requirements for this document.

Components Used

The information in this document is based on a Cisco Adaptive Security Appliance (ASA) that runs Version 8.x.

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.

Troubleshooting Process

This typical troubleshooting scenario applies to applications that do not work through the Cisco AnyConnect VPN Client for end-users with Microsoft Windows-based computers. These sections address and provide solutions to the problems:

Installation and Virtual Adapter Issues

Complete these steps:

Obtain the device log file:

Windows XP / Windows 2000:

Note: Hidden folders must be made visible in order to see these files.

If you see errors in the setupapi log file, you can turn up verbosity to 0x2000FFFF.

Obtain the MSI installer log file:

If this is an initial web deploy install, this log is located in the per-user temp directory.

Windows XP / Windows 2000:

If this is an automatic upgrade, this log is in the temp directory of the system:

The filename is in this format: anyconnect-win-x.x.xxxx-k9-install-yyyyyyyyyyyyyy.log. Obtain the most recent file for the version of the client you want to install. The x.xxxx changes based on the version, such as 2.0.0343, and yyyyyyyyyyyyyy is the date and time of the install.

Obtain the PC system information file:

From a Command Prompt/DOS box, type this:

Windows XP / Windows 2000:

Note: After you type into this prompt, wait. It can take between two to five minutes for the file to complete.

Obtain a systeminfo file dump from a Command Prompt:

Windows XP and Windows Vista:

Refer to AnyConnect: Corrupt Driver Database Issue in order to debug the driver issue.

Disconnection or Inability to Establish Initial Connection

If you experience connection problems with the AnyConnect client, such as disconnections or the inability to establish an initial connection, obtain these files:

The configuration file from the ASA in order to determine if anything in the configuration causes the connection failure:

From the console of the ASA, type write net x.x.x.x:ASA-Config.txt where x.x.x.x is the IP address of a TFTP server on the network.

From the console of the ASA, type show running-config . Let the configuration complete on the screen, then cut-and-paste to a text editor and save.

The ASA event logs:

In order to enable logging on the ASA for auth, WebVPN, Secure Sockets Layer (SSL), and SSL VPN Client (SVC) events, issue these CLI commands:

Originate an AnyConnect session and ensure that the failure can be reproduced. Capture the logging output from the console to a text editor and save.

In order to disable logging, issue no logging enable .

The Cisco AnyConnect VPN Client log from the Windows Event Viewer of the client PC:

Choose Start > Run.

Right-click the Cisco AnyConnect VPN Client log, and select Save Log File as AnyConnect.evt.

Note: Always save it as the .evt file format.

If the user cannot connect with the AnyConnect VPN Client, the issue might be related to an established Remote Desktop Protocol (RDP) session or Fast User Switching enabled on the client PC. The user can see the AnyConnect profile settings mandate a single local user, but multiple local users are currently logged into your computer. A VPN connection will not be established error message error on the client PC. In order to resolve this issue, disconnect any established RDP sessions and disable Fast User Switching. This behavior is controlled by the Windows Logon Enforcement attribute in the client profile, however currently there is no setting that actually allows a user to establish a VPN connection while multiple users are logged on simultaneously on the same machine. Enhancement request CSCsx15061 was filed to address this feature.

Note: Make sure that port 443 is not blocked so the AnyConnect client can connect to the ASA.

When a user cannot connect the AnyConnect VPN Client to the ASA, the issue might be caused by an incompatibility between the AnyConnect client version and the ASA software image version. In this case, the user receives this error message: The installer was not able to start the Cisco VPN client, clientless access is not available .

In order to resolve this issue, upgrade the AnyConnect client version to be compatible with the ASA software image.

When you log in the first time to the AnyConnect, the login script does not run. If you disconnect and log in again, then the login script runs fine. This is the expected behavior.

When you connect the AnyConnect VPN Client to the ASA, you might receive this error: User not authorized for AnyConnect Client access, contact your administrator .

This error is seen when the AnyConnect image is missing from the ASA. Once the image is loaded to the ASA, AnyConnect can connect without any issues to the ASA.

This error can be resolved by disabling Datagram Transport Layer Security (DTLS). Go to Configuration > Remote Access VPN > Network (Client) Access > AnyConnect Connection Profiles and uncheck the Enable DTLS check box. This disables DTLS.

The dartbundle files show this error message when the user gets disconnected: TUNNELPROTOCOLDPDMGR_ERROR_NO_DPD_RESPONSE:The secure gateway failed to respond to Dead Peer Detection packets . This error means that the DTLS channel was torn due to Dead Peer Detection (DPD) failure. This error is resolved if you tweak the DPD keepalives and issue these commands:

The svc keepalive and svc dpd-interval commands are replaced by the anyconnect keepalive and anyconnect dpd-interval commands respectively in ASA Version 8.4(1) and later as shown here:

Problems with Passing Traffic

When problems are detected with passing traffic to the private network with an AnyConnect session through the ASA, complete these data-gathering steps:

Obtain the output of the show vpn-sessiondb detail svc filter name ASA command from the console. If the output shows Filter Name: XXXXX , then gather the output for show access-list XXXXX. Verify that the access-list XXXXX does not block the intended traffic flow.

Export the AnyConnect statistics from AnyConnect VPN Client > Statistics > Details > Export (AnyConnect-ExportedStats.txt).

Check the ASA configuration file for nat statements. If Network Address Translation (NAT) is enabled, these must exempt data that returns to the client as a result of NAT. For example, to NAT exempt (nat 0) the IP addresses from the AnyConnect pool, use this on the CLI:

Determine if the tunneled default gateway needs to be enabled for the setup. The traditional default gateway is the gateway of last resort for non-decrypted traffic.

For example, if the VPN Client needs to access a resource which is not in the routing table of the VPN Gateway, the packet is routed through the standard default gateway. The VPN gateway does not need the complete internal routing table in order to resolve this. The tunneled keyword can be used in this instance.

Verify if the AnyConnect traffic is dropped by the inspection policy of the ASA. You could exempt the specific application that is used by AnyConnct client if you implement the Modular Policy Framework of Cisco ASA. For example, you could exempt the skinny protocol with these commands.

AnyConnect Crash Issues

Complete these data-gathering steps:

Ensure that the Microsoft Utility Dr Watson is enabled. In order to do this, choose Start > Run, and run Drwtsn32.exe. Configure this and click OK:

When the crash occurs, gather the .log and .dmp files from C:Documents and SettingsAll UsersApplication DataMicrosoftDr Watson. If these files appear to be in use, then use ntbackup.exe.

Obtain the Cisco AnyConnect VPN Client log from the Windows Event Viewer of the client PC:

Choose Start > Run.

Right-click the Cisco AnyConnect VPN Client log, and select Save Log File As AnyConnect.evt.

Note: Always save it as the .evt file format.

Fragmentation / Passing Traffic Issues

Some applications, such as Microsoft Outlook, do not work. However, the tunnel is able to pass other traffic such as small pings.

This can provide clues as to a fragmentation issue in the network. Consumer routers are particularly poor at packet fragmentation and reassembly.

Try a scaling set of pings in order to determine if it fails at a certain size. For example, ping -l 500, ping -l 1000, ping -l 1500, ping -l 2000.

It is recommended that you configure a special group for users that experience fragmentation, and set the SVC Maximum Transition Unit (MTU) for this group to 1200. This allows you to remediate users who experience this issue, but not impact the broader user base.

Problem

TCP connections hang once connected with AnyConnect.

Solution

In order to verify if your user has a fragmentation issue, adjust the MTU for AnyConnect clients on the ASA.

Uninstall Automatically

Problem

The AnyConnect VPN Client uninstalls itself once the connection terminates. The client logs show that keep installed is set to disabled.

Solution

AnyConnect uninstalls itself despite that the keep installed option is selected on the Adaptive Security Device Manager (ASDM). In order to resolve this issue, configure the svc keep-installer installed command under group-policy.

Issue Populating the Cluster FQDN

Problem: AnyConnect client is pre-populated with the hostname instead of the cluster Fully Qualified Domain Name (FQDN).

When you have a load-balancing cluster set up for SSL VPN and the client attempts to connect to the cluster, the request is redirected to the node ASA and the client logs in successfully. After some time, when the client tries to connect to the cluster again, the cluster FQDN is not seen in the Connect to entries. Instead, the node ASA entry to which the client has been redirected is seen.

Solution

This occurs because the AnyConnect client retains the host name to which it last connected. This behavior is observed and a bug has been filed. For complete details about the bug, refer to Cisco bug ID CSCsz39019. The suggested workaround is to upgrade the Cisco AnyConnect to Version 2.5.

Backup Server List Configuration

A backup server list is configured in case the main server selected by the user is not reachable. This is defined in the Backup Server pane in the AnyConnect profile. Complete these steps:

Download the AnyConnect Profile Editor (registered customers only) . The file name is AnyConnectProfileEditor2_4_1.jar.

Create an XML file with the AnyConnect Profile Editor.

Go to the server list tab.

Click Add.

Type the main server on the Hostname field.

Add the backup server below the backup server list on the Host address field. Then, click Add.

Once you have the XML file, you need to assign it to the connection you use on the ASA.

In ASDM, choose Configuration >Remote Access VPN >Network (Client) Access >AnyConnect Connection Profiles.

Select your profile and click Edit.

Click Manage from the Default Group Policy section.

Select your group-policy and click Edit.

Select Advanced and then click SSL VPN Client.

Click New. Then, you need to type a name for the Profile and assign the XML file.

Connect the client to the session in order to download the XML file.

AnyConnect: Corrupt Driver Database Issue

This entry in the SetupAPI.log file suggests that the catalog system is corrupt:

W239 driver signing class list «C:WINDOWSINFcertclas.inf» was missing or invalid. Error 0xfffffde5: Unknown Error. , assuming all device classes are subject to driver signing policy.

You can also receive this error message: Error(3/17): Unable to start VA, setup shared queue, or VA gave up shared queue .

You can receive this log on the client: «The VPN client driver has encountered an error» .

Repair

This issue is due to Cisco bug ID CSCsm54689. In order to resolve this issue, make sure that Routing and Remote Access Service is disabled before you start AnyConnect. If this does not resolve the issue, complete these steps:

Open a command prompt as an Administrator on the PC (elevated prompt on Vista).

Run net stop CryptSvc .

When prompted, choose OK in order to attempt the repair.

Exit the command prompt.

Failed Repair

If the repair fails, complete these steps:

Open a command prompt as an Administrator on the PC (elevated prompt on Vista).

Run net stop CryptSvc .

Rename the %WINDIR%system32catroot2 to catroot2_old directory.

Exit the command prompt.

Analyze the Database

You can analyze the database at any time in order to determine if it is valid.

Open a command prompt as an Admimistrator on the PC.

Error Messages

Error: Unable to Update the Session Management Database

While the SSL VPN is connected through a web browser, the Unable to Update the Session Management Database. error message appears, and the ASA logs show %ASA-3-211001: Memory allocation Error. The adaptive security appliance failed to allocate RAM system memory .

Solution 1

This issue is due to Cisco bug ID CSCsm51093. In order to resolve this issue, reload the ASA or upgrade the ASA software to the interim release mentioned in the bug. Refer to Cisco bug ID CSCsm51093 for more information.

Solution 2

This issue can also be resolved if you disable threat-detection on ASA if threat-detection is used.

Error: «Module c:Program FilesCiscoCisco AnyConnect VPN Clientvpnapi.dll failed to register»

When you use the AnyConnect client on laptops or PCs, an error occurs during the install:

When this error is encountered, the installer cannot move forward and the client is removed.

Solution

These are the possible workarounds to resolve this error:

The latest AnyConnect client is no longer officially supported with Microsoft Windows 2000. It is a registry problem with the 2000 computer.

Remove the VMware applications. Once AnyConnect is installed, VMware applications can be added back to the PC.

Add the ASA to their trusted sites.

Copy these files from the ProgramFilesCiscoCiscoAnyconnect folder to a new folder and run the regsvr32 vpnapi.dll command prompt:

• vpnapi.dll
• vpncommon.dll
• vpncommoncrypt.dll

Reimage the operating system on the laptop/PC.

The log message related to this error on the AnyConnect client looks similar to this:

Error: «An error was received from the secure gateway in response to the VPN negotiation request. Please contact your network administrator»

When clients try to connect to the VPN with the Cisco AnyConnect VPN Client, this error is received.

This message was received from the secure gateway:

«Illegal address class» or «Host or network is 0» or «Other error»

Solution

The issue occurs because of the ASA local IP pool depletion. As the VPN pool resource is exhausted, the IP pool range must be enlarged.

Cisco bug ID is CSCsl82188 is filed for this issue. This error usually occurs when the local pool for address assignment is exhausted, or if a 32-bit subnet mask is used for the address pool. The workaround is to expand the address pool and use a 24-bit subnet mask for the pool.

Error: Session could not be established. Session limit of 2 reached.

When you try to connect more than two clients with the AnyConnect VPN Client, you receive the Login Failed error message on the Client and a warning message in the ASA logs that states Session could not be established. Session limit of 2 reached . I have the AnyConnect essential license on the ASA, which runs Version 8.0.4.

Solution 1

This error occurs because the AnyConnect essential license is not supported by ASA version 8.0.4. You need to upgrade the ASA to version 8.2.2. This resolves the error.

Note: Regardless of the license used, if the session limit is reached, the user will receive the login failed error message.

Solution 2

This error can also occur if the vpn-sessiondb max-anyconnect-premium-or-essentials-limit session-limit command is used to set the limit of VPN sessions permitted to be established. If the session-limit is set as two, then the user cannot establish more than two sessions even though the license installed supports more sessions. Set the session-limit to the number of VPN sessions required in order to avoid this error message.

Error: Anyconnect not enabled on VPN server while trying to connect anyconnect to ASA

You receive the Anyconnect not enabled on VPN server error message when you try to connect AnyConnect to the ASA.

Solution

This error is resolved if you enable AnyConnect on the outside interface of the ASA with ASDM. For more information on how to enable AnyConnect on the outside interface, refer to Configure Clientless SSL VPN (WebVPN) on the ASA.

Error:- %ASA-6-722036: Group client-group User xxxx IP x.x.x.x Transmitting large packet 1220 (threshold 1206)

The %ASA-6-722036: Group User IP Transmitting large packet 1220 (threshold 1206) error message appears in the logs of the ASA. What does this log mean and how is this resolved?

Solution

This log message states that a large packet was sent to the client. The source of the packet is not aware of the MTU of the client. This can also be due to compression of non-compressible data. The workaround is to turn off the SVC compression with the svc compression none command. This resolves the issue.

Error: The secure gateway has rejected the agent’s vpn connect or reconnect request.

When you connect to the AnyConnect Client, this error is received: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires re-authentication and must be started manually. Please contact your network administrator if this problem persists. The following message was received from the secure gateway: no assigned address» .

This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the connection attempt. A new connection attempt to the same or another secure gateway is needed, which requires re-authentication. The following message was received from the secure gateway:Host or network is 0» .

This error is also received when you connect to the AnyConnect Client: «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» .

Solution

The router was missing pool configuration after reload. You need to add the concerned configuration back to the router.

The «The secure gateway has rejected the agent’s vpn connect or reconnect request. A new connection requires a re-authentication and must be started manually. Please contact the network administrator if the problem persists. The following message was received from the secure gateway: No License» error occurs when the AnyConnect mobility license is missing. Once the license is installed, the issue is resolved.

Error: «Unable to update the session management database»

When you try to authenticate in WebPortal, this error message is received: «Unable to update the session management database» .

Solution

This problem is related to memory allocation on the ASA. This issue is mostly encountered when the ASA Version is 8.2.1. Originally, this requires a 512MB RAM for its complete functionality.

As a permanent workaround, upgrade the memory to 512MB.

As a temporary workaround, try to free the memory with these steps:

Disable the threat-detection.

Disable SVC compression.

Error: «The VPN client driver has encountered an error»

This is an error message obtained on the client machine when you try to connect to AnyConnect.

Solution

In order to resolve this error, complete this procedure in order to manually set the AnyConnect VPN agent to Interactive:

Right-click My Computer > Manage > Services and Applications > Services > and select the Cisco AnyConnect VPN Agent.

Right-click Properties, then log on, and select Allow service to interact with the desktop.

This sets the registry Type value DWORD to 110 (default is 010) for the HKEY_LOCAL_MACHINESYSTEMCurrentControlSetServicesvpnagent.

Note: If this is to be used, then the preference would be to use the .MST transform in this instance. This is because if you set this manually with these methods, it requires that this be set after every install/upgrade process. This is why there is a need to identify the application that causes this problem.

When Routing and Remote Access Service (RRAS) is enabled on the Windows PC, AnyConnect fails with the The VPN client driver has encountered an error. error message. In order to resolve this issue, make sure that Routing and RRAS is disabled before starting AnyConnect. Refer to Cisco bug ID CSCsm54689 for more information.

Error: «Unable to process response from xxx.xxx.xxx.xxx»

AnyConnect clients fail to connect to a Cisco ASA. The error in the AnyConnect window is «Unable to process response from xxx.xxx.xxx.xxx» .

Solution

In order to resolve this error, try these workarounds:

Remove WebVPN from the ASA and reenable it. «Login Denied , unauthorized connection mechanism , contact your administrator» .

Solution

This error message occurs mostly because of configuration issues that are improper or an incomplete configuration. Check the configuration and make sure it is as required to resolve the issue.

Secure VPN via remote desktop is not supported error message appears.

Solution

This issue is due to these Cisco bug IDs: CSCsu22088 and CSCso42825. If you upgrade the AnyConnect VPN Client, it can resolve the issue. Refer to these bugs for more information.

Error: «The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established»

When you attempt to VPN to the ASA 5505, the The server certificate received or its chain does not comply with FIPS. A VPN connection will not be established error message appears.

Solution

In order to resolve this error, you must disable the Federal Information Processing Standards (FIPS) in the AnyConnect Local Policy file. This file can usually be found at C:ProgramDataCiscoCisco AnyConnect VPN ClientAnyConnectLocalPolicy.xml . If this file is not found in this path, then locate the file at a different directory with a path such as C:Documents and SettingsAll UsersApplication DataCisco AnyConnectVPNClientAnyConnectLocalPolicy.xml . Once you locate the xml file, make changes to this file as shown here:

Change the phrase:

true

false

Then, restart the computer. Users must have administrative permissions in order to modify this file.

Error: «Certificate Validation Failure»

Users are unable to launch AnyConnect and receive the Certificate Validation Failure error.

Solution

Certificate authentication works differently with AnyConnect compared to the IPSec client. In order for certificate authentication to work, you must import the client certificate to your browser and change the connection profile in order to use certificate authentication. You also need to enable this command on your ASA in order to allow SSL client-certificates to be used on the outside interface:

ssl certificate-authentication interface outside port 443

Error: «VPN Agent Service has encountered a problem and needs to close. We are sorry for the inconvenience»

When AnyConnect Version 2.4.0202 is installed on a Windows XP PC, it stops at updating localization files and an error message shows that the vpnagent.exe fails.

Solution

This behavior is logged in Cisco bug ID CSCsq49102. The suggested workaround is to disable the Citrix client.

Error: «This installation package could not be opened. Verify that the package exists»

When AnyConnect is downloaded, this error message is received:

«Contact your system administrator. The installer failed with the following error: This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.»

Solution

Complete these steps in order to fix this issue:

Remove any anti-virus software.

Disable the Windows firewall.

If neither Step 1 or 2 helps, then format the machine and then install.

If the problem still persists, open a TAC Case.

Error: «Error applying transforms. Verify that the specified transform paths are valid.»

This error message is recieved during the auto-download of AnyConnect from the ASA:

This is the error message received when connecting with AnyConnect for MacOS:

Solution

Complete one of these workarounds in order to resolve this issue:

The root cause of this error might be due to a corrupted MST translation file (for example, imported). Perform these steps to fix this:

Remove the MST translation table.

Configure the AnyConnect image for MacOS in the ASA.

From the ASDM, follow the Network (Client) Access > AnyConnect Custom > Installs path and delete the AnyConnect package file. Make sure the package remains in Network (Client) Access > Advanced > SSL VPN > Client Setting.

If neither of these workarounds resolve the issue, contact Cisco Technical Support.

Error: «The VPN client driver has encountered an error»

This error is received:

Solution

This issue can be resolved when you uninstall the AnyConnect Client, and then remove the anti-virus software. After this, reinstall the AnyConnect Client. If this resolution does not work, then reformat the PC in order to fix this issue.

Error: «A VPN reconnect resulted in different configuration setting. The VPN network setting is being re-initialized. Applications utilizing the private network may need to be restored.»

This error is received when you try to launch AnyConnect:

Solution

In order to resolve this error, use this:

The svc mtu command is replaced by the anyconnect mtu command in ASA Version 8.4(1) and later as shown here:

AnyConnect Error While Logging In

Problem

The AnyConnect receives this error when it connects to the Client:

Solution

The issue can be resolved if you make these changes to the AnyConnect profile:

Add this line to the AnyConnect profile:

IE Proxy Setting is Not Restored after AnyConnect Disconnect on Windows 7

Problem

In Windows 7, if the IE proxy setting is configured for Automatically detect settings and AnyConnect pushes down a new proxy setting, the IE proxy setting is not restored back to Automatically detect settings after the user ends the AnyConnect session. This causes LAN issues for users who need their proxy setting configured for Automatically detect settings.

Solution

This behavior is logged in Cisco bug ID CSCtj51376. The suggested workaround is to upgrade to AnyConnect 3.0.

Error: AnyConnect Essentials can not be enabled until all these sessions are closed.

This error message is received on Cisco ASDM when you attempt to enable the AnyConnect Essentials license:

Solution

This is the normal behavior of the ASA. AnyConnect Essentials is a separately licensed SSL VPN client. It is entirely configured on the ASA and provides the full AnyConnect capability, with these exceptions:

No Cisco Secure Desktop (CSD) (including HostScan/Vault/Cache Cleaner)

No clientless SSL VPN

Optional Windows Mobile Support

This license cannot be used at the same time as the shared SSL VPN premium license. When you need to use one license, you need to disable the other.

Error: Connection tab on Internet option of Internet Explorer hides after getting connected to the AnyConnect client.

The connection tab on the Internet option of Internet Explorer hides after you are connected to the AnyConnect client.

Solution

This is due to the msie-proxy lockdown feature. If you enable this feature, it hides the Connections tab in Microsoft Internet Explorer for the duration of an AnyConnect VPN session. If you disable the feature, it leaves the display of the Connections tab unchanged.

Error: Few users getting Login Failed Error message when others are able to connect successfully through AnyConnect VPN

A few users receive the Login Failed Error message when others can connect successfully through the AnyConnect VPN.

Solution

This issue can be resolved if you make sure the do not require pre-authentication checkbox is checked for the users.

Error: The certificate you are viewing does not match with the name of the site you are trying to view.

During the AnyConnect profile update, an error is shown that says the certificate is invalid. This occurs with Windows only and at the profile update phase. The error message is shown here:

Solution

This can be resolved if you modify the server list of the AnyConnect profile in order to use the FQDN of the certificate.

This is a sample of the XML profile:

Note: If there is an existing entry for the Public IP address of the server such as , then remove it and retain only the FQDN of the server (for example, but not ).

Cannot Launch AnyConnect From the CSD Vault From a Windows 7 Machine

When the AnyConnect is launched from the CSD vault, it does not work. This is attempted on Windows 7 machines.

Solution

Currently, this is not possible because it is not supported.

AnyConnect Profile Does Not Get Replicated to the Standby After Failover

The AnyConnect 3.0 VPN client with ASA Version 8.4.1 software works fine. However, after failover, there is no replication for the AnyConnect profile related configuration.

Solution

This problem has been observed and logged under Cisco bug ID CSCtn71662. The temporary workaround is to manually copy the files to the standby unit.

AnyConnect Client Crashes if Internet Explorer Goes Offline

When this occurs, the AnyConnect event log contains entries similar to these:

Solution

This behavior is observed and logged under Cisco bug ID CSCtx28970. In order to resolve this, quit the AnyConnect application and relaunch. The connection entries reappear after relaunch.

Error Message: TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER

The AnyConnect client fails to connect and the Unable to establish a connection error message is received. In the AnyConnect event log, the TLSPROTOCOL_ERROR_INSUFFICIENT_BUFFER error is found.

Solution

This occurs when the headend is configured for split-tunneling with a very large split-tunnel list (approximately 180-200 entries) and one or more other client attributes are configured in the group-policy, such as dns-server.

In order to resolve this issue, complete these steps:

Reduce the number of entries in the split-tunnel list.

Use this configuration in order to disable DTLS:

For more information, refer to Cisco bug ID CSCtc41770.

Error Message: «Connection attempt has failed due to invalid host entry»

The Connection attempt has failed due to invalid host entry error message is received while AnyConnect is authenticated with the use of a certificate.

Solution

In order to resolve this issue, try either of these possible solutions:

• Upgrade the AnyConnect to Version 3.0.
• Disable Cisco Secure Desktop on your computer.

For more information, refer to Cisco bug ID CSCti73316.

Error: «Ensure your server certificates can pass strict mode if you configure always-on VPN»

When you enable the Always-On feature on AnyConnect, the Ensure your server certificates can pass strict mode if you configure always-on VPN error message is received.

Solution

This error message implies that if you want to use the Always-On feature, you need a valid sever certificate configured on the headend. Without a valid server certificate, this feature does not work. Strict Cert Mode is an option that you set in the AnyConnect local policy file in order to ensure the connections use a valid certificate. If you enable this option in the policy file and connect with a bogus certificate, the connection fails.

Error: «An internal error occurred in the Microsoft Windows HTTP Services»

This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

Also, refer to the event viewer logs on the Windows machine.

Solution

This could be caused due to a corrupted Winsock connection. Reset the connection from the command promt with this command and restart your windows machine:

netsh winsock reset

Error: «The SSL transport received a Secure Channel Failure. May be a result of a unsupported crypto configuration on the Secure Gateway.»

This Diagnostic AnyConnect Reporting Tool (DART) shows one failed attempt:

Solution

Windows 8.1 does not support RC4 according to the following KB update:

Either configure DES/3DES ciphers for SSL VPN on the ASA using the command «ssl encryption 3des-sha1 aes128-sha1 aes256-sha1 des-sha1» OR edit the Windows Registry file on the client machine as mentioned below:

Источник