I have a Windows 2003 server box with MS DNS server running. The server is configured with two IP addresses and the DNS server is configured to listen on both. The problem is one IP responds to the queries correctly but the other does not (although it does reply, either the reply is empty or is different from what expected). The queries made at the second IP do not show up in the DNS log either. I can connect to other services running on the server on both IPs without problem.