VPN - has anyone tested it?

All of a sudden on my Windows 8.1 PC I keep getting a error that the VPN driver could bot be installed. Windows detects the driver as a unknown device and when trying to update the driver it fails.
I am using the latest version 12 I have uninstalled all Windows updates going back to May but still no luck. Also tried older versions of TV also no luck. This used to work flawlessly until last week.