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)