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Monday, June 26, 2017

Repadmin Error 1722

You are doing daily check of Active Directory replication on your Admin's machine using repadmin /replsum command.
You saw there are error 1722 at the bottom of the result.
You have checked that all the necessary port for Active Directory are open. You also verify using PortQry tool.
You try to perform WMI query from Admin's machine to the suspected DC but failed.
You logon to the suspected DC and all incoming replication are ok.

Run the WMI query and monitor the network. Most probably there are some RPC traffic being dropped somewhere in the network. On Windows 2008 and above, please check for traffic running on RPC dynamic port (49152 - 65535).

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