I have followed the guide here: http://www.youtube.com/watch?v=9qbpxKRb-94
But my situation differs with respect to there being no AD (Active Directory) setup.
When I try to connect I get this in the server event log: "The user xx connected from x.x.x.x but failed an authentication attempt due to the following reason: The account does not have permission to dial in."
Is there a way to enable this without AD?