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Windows Server 2008 R2DC won't replicate

Last Modified: 2016-01-25
I have a test lab with two physical servers.  A DC and a VMWare host 4.1 esxi.  The host has 5 virtual (win2008R2) servers; A 2nd DC, Exchange 2010 server, Sharepoint Server, Vcenter Server, Application server,

I noticed that the time on each of the servers was WAY off.  it had an August 14, 2009 date and time was also off by about 6 hours.  I verified the the PDC (physical server had the correct time) and then went into the ESXi host and configured the time to sync with the PDC.  All time across the host and all virtual servers sync'd up and showed the correct time.

However, the replication between the PDC (physical server) and the BDC (Virtual Server) quit working.  I can replicate between the PDC and the BDC, but not from the BDC to the PDC.

I am getting the following error:

Tombstone Error
All the MS tech articles describe the cause of the problem as being a big jump between the last replication times.  Which I understand  because it jumped 6 years!  However, I don't see anything that says how to fix this.
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Jeff GloverSr. Systems Administrator

Although I would recommend, in this case, just force removing the Virtual DC (we really do not use the term BDC anymore) , cleaning AD then reinstalling, but if you want to try and you know AD has not changed that much, you can use Regedit to force replication between divergent partners
In regedit, go to HKLM\System\CurrentControlSet\NTDS\Parameters
Add a key Dword(32) Allow Replication between divergent and corrupt partners. Set to 1.
Restart Netlogon and FRS (or reboot DC)
Wait 15 minutes and see if replication works. If it does, change the registry key to 0 and you are set.
However, if you made a lot of changes to AD, you may have to remove lingering objects before doing this. The process is explained r here. https://technet.microsoft.com/en-us/library/cc785298(v=ws.10).aspx


Didn't like the answer, didn't want to do it, but it WORKED!  Thanks!

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