I am trying to connect my laptop from home to the office using a VPN connection. The laptop is running Vista Business and comes back with the following error. When I connect from my desktop at home running XP pro it works fine.
Error 806: The VPN connection between your computer and the VPN server could not be completed. The most common cause for the failure is that one of the Internet devices (for example, a firewall or router) between your computer and the VPN server is not configured to allow Generic Routing Encapsulation (GRE) protocol packets.