I can't log-in the Windows having the LAN-cable connected to network adapter. Hence I forced to unplug the cable prior to enter the Windows with my login and password, and then plug the cable again. Under an Windows I can access all the shared resources of the network and change my password on a DC. I have Windows XP Professional (this is just in case). I have already asked him to resolve my issue but he couldn't do anything, only that he suggested to reinstall the OS. But I have declined his offer because I have a lot of programs installed on my PC and settings as well. That situation occured after a system administrator reset my password, because I have forgotten it. And after a short period of time I start getting pop-up messages in a system tray that passwords on my PC and DC are not consisting. From that moment I can't to log-in the Windows in usual manner. Later I have changed my password in the system already with myself. Pop-up message has ceased to arise, but the problem is remain.