Not sure what to make of this...New 2003 Small Business Server on a new domain. Server ip 192.168.1.5 Set up DHCP scope to list this ip as ONLY DNS server. Cannot join machines to domain due to a DNS problem. I am unable to resolve anything from an NSLOOKUP on the existing machines. I AM able to resolve both internal and external addresses by running an NSLOOKUP on the server. All machines can ping 192.168.1.5, just can't get DNS queries answered. Disabled firewall on Server (Service Pack 1) and on clients (XP Pro SP2). Running an ipconfig on client machines verifies that 192.168.1.5 is the ONLY DNS server listed. Not sure where to go from here. Any ideas?