swiftysw1 Posted June 6, 2019 Posted June 6, 2019 Hi, For some reason both of my DC's are out of sync. We have one DC showing my recent changes and another that isnt... What can I do? Thanks Simon W
sister_annex Posted June 6, 2019 Posted June 6, 2019 What OS are you running? Few things I would start with: Have you checked that replication is stable: repadmin /showrepl repadmin /replsummary Is the time correct on both servers? your PDC should be syncing with a time source and your others should be syncing to your PDC
swiftysw1 Posted June 6, 2019 Author Posted June 6, 2019 Server 2012. (Should have said Lol) Yes times are spot on..
HPlum78 Posted June 6, 2019 Posted June 6, 2019 (edited) https://www.microsoft.com/en-us/download/details.aspx?id=30005 Dcdiag and repadmin but in all honesty use the tool above.... Oh and first guess dirty shut down? Edited June 6, 2019 by HPlum78
HPlum78 Posted June 6, 2019 Posted June 6, 2019 No it's not a tool that can repair any issues more for exposing an issues to hell you focus on any errors and use other tools to fix them.
HPlum78 Posted June 6, 2019 Posted June 6, 2019 Take it that its found an issue? If so post it and we maybe able to be able to help.
swiftysw1 Posted June 10, 2019 Author Posted June 10, 2019 Hi Here is the Error. The Replication operation encountered a database error
swiftysw1 Posted June 11, 2019 Author Posted June 11, 2019 HI This is the error.. https://www.dropbox.com/s/x3jrfdm3t4hd0z7/Capture.JPG?dl=0 When I click on it it states Replication error 8451 The replication operation encountered a database error | Microsoft Docs Replication error 8451 The replication operation encountered a database error
colly72 Posted June 11, 2019 Posted June 11, 2019 This might help in narrowing down the issue: https://support.microsoft.com/en-gb/help/2645996/active-directory-replication-error-8451-the-replication-operation-enco
HPlum78 Posted June 11, 2019 Posted June 11, 2019 So to sum up the link provided enable additional NTDS logging via the Reg key, then it's a case of looking at the logs to determine whats going on.
CCCSecMan Posted June 14, 2019 Posted June 14, 2019 Have you tried rebooting each domain controller in succession?
PotNoodleTech Posted June 14, 2019 Posted June 14, 2019 Have you checked the time on each DC? They need to be close (preferably identical).
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