For some reason, the buttons "network ID" and "change..." under the computer name properties are greyed out. The computer reports that the network is not set up correctly, but the strange thing is that it is joined to a domain already and has been working. I cannot connect to any of the servers on the network even though the IP address I have is valid. I checked the services that were on and they looked ok. Maybe I need to have another service turned on. Any reason why the buttons are greyed out, and how can I get them to work?