I saw this problem is quite common. I have one primary domain server win 2003 with enabled DNS, one 100MB switch, and several Win XP Pro workstations. The logon procedure take about 5 min, the browsing is very slow. The XP workstation is configured with the correct setting for DNS IP address.\nI have to note that I have no problem to logon to another Win2K server (also PDC). When I test it, I connect the workstations to another network (both servers are not on the same network).\nWhat could be wrong with the Win 2k3 server? Any clues?