I have a user that all of a sudden cannot connect to the server. He can login just fine, but when he tries to open any network drives, it says logon failure: unkown username or bad password. If I disconnect the drive and try to remap it, it prompts for a username and password. I enter the correct username and password and it does not accept it. I reset the users password just to make sure it was correct, also made sure his account is not locked out. I also disjoined the domain and rejoined the domain. Still have the same problem. The client computer is XP and the server is small business server 2008.