Error AD Replication: (8456) The source server is currently rejecting replication requests

It comes to my attention to share some of AD replication error that might be available or faced in your organization. I always run this replication summary, “Repadmin /Replsummary” and gets the output below:

 

The error above is (8456) The source server is currently rejecting replication requests.

 

when I go to the URL link http://support.microsoft.com/kb/2023007, there are helpful for me to troubleshoot.

 

I have followed some steps to troubleshoot and solution:

1. I have checked the possible cause of this. I checked the registry to check the status on “DSA not Writable”.  Run Regedit.

Go to the HKLM -> System -> CurrentControlSet -> Services -> NTDS -> Paramaters.

On Setting DSA Not Writable. Check the value and I capture the screenshot below:

 

The DSA Not Writable is set to 4. When checking on the table of link http://support.microsoft.com/kb/2023007, it shows and means that USN Rollback occurred.

The active directory was incorrectly roll back due to cause following below:

– snapshot of Virtual Machine was taken or was saved on previous snapshot.

– Restoring DC on using Imaging such as Norton Ghost.

2. I also checked the Event Viewer on Directory Service. The Event ID 1308 shows the failure of the replication.

 

 

 

3. I have no choice to decommission the affected domain controller by using DCPROMO /ForceRemoval.

4. After I successfully forced removal of the affected domain controller, I then use the Metadata cleanup to remove the domain controller. Check the url link – > https://netoverme.wordpress.com/2011/06/03/metadata-cleanup-in-windows-2003/

5. After that, remove the server record in DNS, Active Directory Site and Services.

6. On the affected server (previous affected domain controller), I then promote back to become a domain controller to have multiple domain controller.

 

I will update more on any kind of possible solution.

 

Thank you.

 

 

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