Error 649. The account does not have permission to dial-in.
1) This error can occur if the user name is the same as the domain name.
2) This error can occur if the username is 'system'.
3) This error can occur if dialing in to a Windows NT Remote Access Server and your password has expired.
4) Make sure the user is allowed to dial-in.
5) Check PPTP filtering. For the test, disable PPTP filtering on the server (Net Stop RASPPTPF), and see if you can establish a non-filtered connection.