Just updated to 14291... no luck, same error. I just created a new DVD from the ISO maker. Going to try a fresh install and see if I'm able to make a bridge.

I am getting the same error, build 14267 and upgraded to 14279, same issue.

Have you had any luck figuring this out?

Downgrading Windows back to 8.1, removing Cisco, then redoing the upgrade worked for me. I had both Cisco VPN and Cisco AnyConnect.

I have not had time yet to try reinstalling.

Same issue, had 2 Cisco (AnyConnect + Cisco VPN 5.0 fat(ter) client). Trying the downgrade/remove/re-upgrade approach. Will post back.