Authentication error using VPN from Windows 7
June 21, 2009 | In Development |I received the following error from Windows 7 when trying to connect to my office server (running Microsoft Windows Server 2008):
Error: 812 The connection was prevented because of a policy configured on your RAS/VPN server. Specifically, the authentication method used by the server to verify your username and password may not match the authentication method configured in your connection profile. Please contact the Administrator of the RAS server and notify them of this error.
It seems this is a common problem from users with Vista too.
The solution was that the user account did not have dial-in permissions set in Active Directory. Simple as that.