I cant log on with any user on this server... I have tried logging in with domain and local accounts.. Its a 2003 windows server running SQL and on a cluster.

Have you rebooted it? Regards, Dave Patrick .... Microsoft Certified Professional Microsoft MVP [Windows] Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

Hi, Your error says: Error connecting to existing session for <username> (Id 0) Sounds like this user is already logged in, perhaps something is going on with that session. Can you reboot the server? Can you log on with another admin account? There is a similar thread and see if it can help you. http://social.technet.microsoft.com/Forums/en-US/winserverTS/thread/660fa8b2-d6b2-4094-819d-4a38aa138048/Jeff Ren TechNet Community Support beneficial to other community members reading the thread.

as suggested by Jeff, looks like user is already logged in via console session. Try mstsc /console or mstsc /admin while connecting rdp session, if user is logged in, you may disconnect the session to log on.A UNIVERSE without WINDOWS is CHAOS ! This posting is provided "AS IS" with no warranties or guarantees and confers no rights. About Me ?

any updates?Jeff Ren TechNet Community Support beneficial to other community members reading the thread.