Windows 2012 R2 DNS Server sporadic failures

Hi Guys;

Recently i promoted three Windows 2012 R2 servers as Domain controllers to my existing multi domain forrest as a first step of a total migration to 2012 R2.

I noticed that none of the new servers are able to resolve anything normally through forwarders, wether that's internal or external, conditional or regular. What puzzles me more, is that when i do an nslookup locally on these servers it always fails due to timeouts. If i try to nslookup the servers from clients, it resolves the local zones, but the external queries are hit and miss.

Despite that i have external forwarders configured properly (Google) and all zones are stored in the AD forrest partition with the proper reverse zones, the servers even fail to resolve their own IP address.

Any  insight on possible reasons?


  • Edited by AsarianH 4 hours 25 minutes ago
August 26th, 2015 10:51pm

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