I have a new Enterprise Server 2003 R2 SP2 installation. Something in DNS is not configured right, but I do not know what it is. My XP clients, after a certain amount of time (like if they did not log off before they went home), will loose connection with the server and will not restore until the client is logged off/on, and sometimes they have to reboot. I thought that it was a typo when I set up AD (using domain.com when I meant domain.local) So I built another server using a different domain name to trouble shoot. The same thing happens on that domain. I read a trouble shooting time here that suggested that the DNS server was not pointing to itself as the primary DNS server. The only place I can find to set this is in the TCP settings for the NIC. Do I have to remove DNS and then re-add it?