Group Policy not replicating – Server 2012

active-directorydomain-controllerreplication

I have 2 DCs.
Both are Server 2012.

For some reason Group Policy does not replicate between them and the client keeps getting :

The processing of Group Policy failed. Windows attempted to read the file \\domain.int\SysVol\domain.int\Policies\{F7D25262-30F3-4F13-B2FA-58122807E062}\gpt.ini 

DNS is working fine between the 2 servers.

I ran dcdiag and the only thing suspicious I saw was this:

"DC=DomainDnsZones,DC=DOMAIN,DC=int
               Latency information for 3 entries in the vector were ignored.
                  3 were retired Invocations.  0 were either: read-only replicas and are not verifiably latent, or dc's no longer replicating this nc.  0 had no latency information (Win2K DC). "

Here's just about all info I think I could spare:

PDC has undergone non-authoritive restore.

EVENTID 4004 on secondary DC "The DFS Replication service stopped replication on the replicated folder at local path C:\Windows\SYSVOL\domain".

EVENTID 5004 but only on the PDC: "The DFS Replication service successfully established an inbound connection with partner DEV-DC for replication group Domain System Volume".

I might as well mention that I found a 7 seconds difference between the DCs.
Could that affect anything?

Best Answer

If I had to guess based on the lack of details here, I'd guess that you've had a dirty DFS shutdown. You can verify this by looking for EventID 2213 in your DFSR log. That event log entry will also give you the exact command that you need to run to re-enable replication on the dirty volume.

Microsoft provides guidance on how/when/where to enable auto-recovery on dirty shutdowns for DFS-R members.

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