Cisco VPN Client and Windows 8

Installing an old version of the Cisco VPN Client on a newly released Windows is usually not working like it should.
I installed the client version on a Windows 8 Laptop and tried to connect.

Following was the error message:
VPN Client failed to enable virtual adapter

The resolution for the problem is to change the display name of the virtual network adapter in the registry:

– From a command prompt, open regedit.exe
– Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CVirtA
– Select DisplayName and remove the leading characters:
old: “@oem8.inf,%CVirtA_Desc%;Cisco Systems VPN Adapter for 64-bit Windows”
new: “Cisco Systems VPN Adapter for 64-bit Windows”

Now you can connect!


I'm a Systems Engineer working for an IT-Service Provider in Frankfurt am Main, Germany. I am specialized in Virtualization, High Availability, Storage- and Server Administration. In my free time, I like spend time with my lovely wife, to do sports like jogging and biking. I enjoy movies and a good bottle of fermented grape juice.

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Posted in Cisco, VPN, Windows 8

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