Yes! My server was AD and only server on the network. For some reason, the network stop working even though network drivers loaded. I even tried installing new NIC card but still can't ping or see any other systems on the network. Ended up installing a new Domain Server. Have alot of apps already installed and hate to reformat the drive. Already removed AD but still can't get the network to work. Just wonder if I could convert to Workstation then figure out why the network doesn't work. If all fail, I will have to reinstall windows. Any idea why network does not work? thanks..