I have a small NT network with a PDC running NT Server with DHCP installed. Machines running NT Workstation log on just fine. My Win 98 machines tell me that No domain controller is available… Microsoft networking is installed and TCP/IP settings appear to be correct. The message went away after installing NetBEUI but 98 only sees the workgroup (itself, other 98 machines, and NT Workstation machines) but not the domain.