Noticed the following DNS error in when I logged into the server and can't seem to resolve it. FYI this domain has been upgraded multiple times from Server 2000. Perhaps I need to delete the _msdcs zone that's under my domain to recreate it as a new primary zone?
"DNS: Zone _msdcs.sample.domain.com is and active directory integrated DNS zone and must be available"
I ran DCDIAG /TEST:DNS /e /v and it comes back with everything passed. I then opened the DNS management console and under forward lookup zone I only see my domain, not another zone starting with _msdcs.sample.domain.com.
I attempted to create the zone manually and got the following error:


Summary of DNS test results:
Auth Basc Forw Del Dyn RReg Ext
_________________________________________________________________
Domain: xxx.sample.com
DC3 PASS PASS PASS PASS PASS PASS n/a
2012R2-DC PASS PASS PASS PASS PASS PASS n/a
OSTDC PASS PASS PASS PASS PASS PASS n/a
What can I do to resolve this?