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

Solution 1:

This is what worked for me:

• Un-install the vpn client

Reboot

(If Win-10 or higher, skip this next step)

• Run this file: ftp://files.citrix.com/winfix.exe

Reboot

• If 32-bit: Run this file: ftp://files.citrix.com/dneupdate.msi
• If 64-bit: Run this file: ftp://files.citrix.com/dneupdate64.msi

Reboot

• Install the VPN client again

Reboot

Instructions taken from here.

Solution 2:

Forget the Cisco client. Use Shrew Soft. All the way up to windows 7 64-bit clients. Cisco doesn't offer and to my knowledge isn't planning a 64-bit client.

http://shrew.net/

(Works with Cisco VPN - that is, I'm not suggesting that you replace the Cisco router)