Here is the situation. I have 3 SSTP VPN servers on Server 2008 Enterprise. The old certificates had to be revoked from Godaddy.com and new one issued. I did the requests and imported the certificates. My users cannot connect, they get error 800. I checked the existing clients, and there did not seem to be a certificate on it for the previous ones. As a matter of fact, I could connect via a microsoft VPN client from any machine. I did not build the solution, and I am not sure how all of the parts interact. Any and all help would be greatly appreciated as I have 3600+ users without VPN connection right now.