Domain Controller not replicating DNS

[Guest /u/The_Great_Sephiroth]

We have a multi-site, multi-DC setup here. Each site has one DC and a unique subnet. Sites are connected via site-to-site Barracuda gateways. We can access stuff in any site from any site, but one DC is not replicating DNS correctly. To begin, let's give a basic setup.

 

Site 1 - 192.168.1.0/24 - DC1

 

Site 2 - 192.168.2.0/24 - DC2

 

Site 3 - 192.168.3.0/24 - DC3

 

You get the idea. We have eleven sites setup this way. The primary DC is at site 1. It was setup first and has the FSMO roles and such. We created DNS and added a reverse-lookup zone for the subnet 192.168.1.0/24 to the PDC and all was good.

 

When site 2 was setup, DC2 was joined and promoted, and a reverse-lookup was added on that DC for 192.168.2.0/24 which replicated to the site 1 DC. The site 2 DC also got the reverse-lookup from site 1. This worked flawlessly except for one of the last two sites. We created the reverse-lookup on the DC at the site, but it never replicated that to any other DC. It DID have all other reverse zones replicated to it.

 

Deleting the zone and re-creating it does not work. It simply won't replicate. Another issue is going to the name servers tab and trying to add any other DC in the domain. It claims those DCs are not authoritative for the zone. I just can't figure it out, but assume it is bad because deleting the zone, waiting a day or two, and creating a fresh one does not fix it. Any reverse-zone created on this DC claims no DCs are authoritative and it won't replicate. Where do I even begin? AD itself seems to replicate tot he problem DC just fine. User accounts, group policy, etc all make it to the DC.

 

submitted by /u/The_Great_Sephiroth

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