Operating System - Windows 2008 R2 Service Pack - Service Pack 1 IP Address - 10.50.1.111 Subnet Mask - 255.255.255.0 Gateway - 10.50.1.1 DNS Server - 10.50.1.90
Other servers are using 10.50.1.90 as their DNS server and are not having any problems. This tells me that the problem is not with the DNS server.
I can ping 10.50.1.90.
The firewall is disabled.
If I run nslookup and query the name of 10.50.1.90 (OfficeDC1.office.org) it says, "*** [10.50.1.90] can't find OfficeDC1".
If I run nslookup and change the server to 126.96.36.199 and query google.com it says, "*** [188.8.131.52] can't find google.com: No response from server".