To quickly verify whether replication between domain controllers (DCs) is functioning correctly, the following PowerShell commands are particularly useful:
repadmin /replsummary
repadmin /showrepl(Displays the status of the most recent inbound replications and helps identify errors)
repadmin /queuerepadmin /syncallrepadmin /kcc(Triggers the Knowledge Consistency Checker to immediately recalculate the replication topology)
Check the general “health” status of the domain controllers:
dcdiag /v
Microsoft provides a graphical utility called the Active Directory Replication Status Tool, which allows replication issues to be monitored and analyzed in a user-friendly way.
Current download link: https://www.microsoft.com/en-us/download/details.aspx?id=30005
Note: Enterprise Administrator privileges are required to use this tool.
The tool offers detailed insights into replication topology, latency, and errors across the entire forest, making it especially useful for large environments or complex troubleshooting scenarios.
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