It looks like you are still using the router for DHCP. Turn off DHCP on the
router. Turn it on on the server. Set the server to use it's own IP address
rather than 127.0.0.1 for DNS. Set the DHCP options so that clients use the
server for DNS and WINS and the router as the gateway. XP will use NETBIOS
to find domain resources but it is very inefficient. Vista will not do this.
Setting up DNS properly is the key to running active directory. The XP
computer will work much better with DNS working properly.
I highly recommend you do some reading on setting up active directory.
http://www.petri.co.il/how_to_instal...ndows_2003.htm http://www.microsoft.com/technet/pro...p/default.mspx
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Kerry Brown
MS-MVP - Windows Desktop Experience: Systems Administration
http://www.vistahelp.ca/phpBB2/