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Title
How to use DCdiag to identify and troubleshoot problems on DCs -
Description
How to use DCdiag to identify and troubleshoot problems on Domain Controllers. -
Cause
The Event viewer may contain several entries related to replication failing. DNS might be in an error state.
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Resolution
Run dcdiag /h from a command prompt to track down the source of any replication errors. The Microsoft URL below provides additional information about the utility: