Recently installed legacy server (Copmpaq DL580) and Windows Server 2003 Enterprise Edition acting as DC, DHCP server, DNS server, and WINS server. Server is configured with 5 CALs server authorized per server. AD, DHCP, and DNS all seem to be up and running. Clients are three workstations running Win2k Pro. DHCP is dynamically assigning IP addresses to the client NICS. All three workstations have IP reservations established so addresses stay the same when dynamically assigned. Just seemed like it would be easier for me to manage that way. TO TEST, used IPCONFIG /RELEASE and IPCONFIG/RENEW and got addresses consistent with the established server scope. Server IP is 192.168.0.1 and scope is 192.168.0.10 through 192.168.0.254 as we expect only one domain. Can set up AD folders, shares, etc. and browse to them from all workstations using My Network Places. Funny thing is that I have only been successful in joining the domain on one workstation. Seems like no matter what I do, it won't let me join and comes up with the error message "Domain 'such and such" cannot be found on the server or the domain could not be reached". Anybody have any ideas on where I should be focusing? I have very little experience with server software and am at best a technical user. Please be specific and patient with your responses. Thank you.