I had a similar problem about a year ago at a client (inherited it actually). Previous guy had tried to fix it (I saw his save files and what-not) and let it go. By the time I got there the tombstones had expired. The whole thing got very nasty.
In this particular case I would first address the connectivity problems (5721, 5732, 5805, 1645) to get that stable, THEN go after the repl issue. From: Coleman, Hunter Sent: Thursday, August 01, 2013 9:21 AM To: [email protected] Subject: RE: [NTSysADM] DCs not in-sync The 1988 event ID points to lingering objects in one of your DCs. See http://technet.microsoft.com/en-us/library/cc949134(v=WS.10).aspx From: [email protected] [mailto:[email protected]] On Behalf Of Thozama Nonxuba Sent: Thursday, August 1, 2013 7:26 AM To: [email protected] Subject: Re: [NTSysADM] DCs not in-sync I can see the following errors: On 2012DC1 Netlogon errors 5721 listing 2008R2DC1 On 2008R2DC1 -System Log NETLOGON error 5723 , 5805 Microsoft-Windows-Kerberos-Key-Distribution-Center - Warning 29 -Directory Service Log Errors 1988 Replication 1645 DS RPC Client On 2008R2DC2 System Log Error about the service: The WinHTTP Web Proxy Auto-Discovery Service service depends on the DHCP Client service which failed to start because of the following error: I don't think the above error is relevant 2008R2DC2 and 2012DC1 sync with no problems . On Thu, Aug 1, 2013 at 2:20 PM, Rick Berry <[email protected]> wrote: Are there any specific Event IDs that you’re seeing related to replication or errors in the Event Logs? If one of your 2008 DCs is sitting in the same room as the other and they’re not talking, you should have some errors listed in the logs. First one I’d look at is under Applications and Services -> Directory Service. Dcdiag also would provide additional clues. From: [email protected] [mailto:[email protected]] On Behalf Of Thozama Nonxuba Sent: Thursday, August 01, 2013 7:24 AM To: [email protected] Subject: [NTSysADM] DCs not in-sync Hi I have 3 DC's. 2x2008R2 and 2012. The 2012 is at our remote office. One of the 2008R2 DC's will not sync with the others no matter what I do. I have tried repadmin and other commands. It's the oldest of the 3 DC's so my exchange 2003 goes there first before the others. It's starting to be a big hassle when creating any AD objects.as this DC12008R2 is not playing nice with the other kids. What else can I try to bring DC12008R2 in line? TIA

