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How to fix AD Replication issues

The following workaround helped me to fix some AD replication issues. Make the following changes in the registry to instruct FRS to handle the JRNL_WRAP_ERROR status automatically:

Stop FRS
Start Registry Editor (Regedt32.exe)
Locate and click the following key in the registry:
- HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NtFrs\Parameters
On the Edit menu, click Add Value, and then add the following registry value:
- Value name: Enable Journal Wrap Automatic Restore
- Data type: REG_DWORD
- Radix: Hexadecimal
- Value data: 1 (Default 0)
Quit Registry Editor
Restart FRS

I hope this could help you in the future as troubleshooting AD replication issue is never easy. There are some available tools to troubleshooting these issues:

DCdiag
Repadmin
Replmon

If you do not have enough knowledge troubleshooting AD replication issues and do not want to waste your time by trying to use these tools, the best options are:

Call an IT engineer who is used to troubleshoot AD issues
Demote the DC having issues and recreate it. In order to do this, you need to:
1. Have a least one working server with Global Catalog
2. Know where the different roles are located and move them, if needed
3. Take your precautions

Good luck with your AD replication issues!

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Details: Written by Nicolas Buache; Created on Saturday, 14 January 2012; Last Updated on Saturday, 14 January 2012; Hits: 1327