Troubleshooting Cisco VPN Client on Windows 10 Issue

Thanks to: http://www.techspacekh.com

1. Objective

In this article, we will see how to install Cisco VPN client on Windows 10 Operating System and fix the issue that it cannot establish remote VPN connection.

2. Problem Description

• There are two problems actually occur about Cisco VPN client on Windows 10. The first problem is Cisco VPN client software is not able to to install on Windows 10 Operating System. Normally, we get the error message of “Error 27850. Unable to manager networking component. Operating system corruption may be preventing installation” at almost the final step of the installation process.

• The second problem occur accordingly after the installation is successfully done and we try to connect Cisco VPN client. The error message is “Secure VPN Connection terminated locally by the Cleint. Reason 442: Failed to enable Virtual Adapter error”.

2. Problem Resolution

• Cisco VPN client software is somehow missing something to be able to work on Window10 OS. Luckily, that missing thing is available in SonicWALL Global VPN Client software. So, to fix the issue, we need to install SonicWALL Global VPN Client software first and install Cisco VPN client just after that. Here is the link to download SonicWALL Global VPN. http://help.mysonicwall.com/Applications/vpnclient.

• After successfully install Cisco VPN client, we can remove SonicWALL Global VPN Client software in order to save system resources and prevent it from running further.
• When trying to establish remove VPN connection to VPN gateway in Windows 10 OS with Cisco VPN client, an error occur as in the problem description section above. To fix this issue, follow the following steps.

Step1: Open Windows Registry Editor by typing regedit in the run.

Step2: After that, browse in the Registry Key to the following path.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CVirtA

Step3: On DisplayName right-click and choose Modify.

– For Windows 10 32bit: modify the value data from “@oem8.inf,%CVirtA_Desc%;Cisco Systems VPN Adapter” to “Cisco Systems VPN Adapter”.

– For Windows 10 64bit: modify the value data from “@oem8.inf,%CVirtA_Desc%;Cisco Systems VPN Adapter for 64-bit Windows” to “Cisco Systems VPN Adapter for 64-bit Windows”. For our case is Windows 10 64bit OS.

Step4: Try to establish remote VPN connection with Cisco VPN client again. The connection should work as the following.

Test ping to any IP in the remote LAN to make sure the Cisco VPN client is really working properly.