Exchange 2016 error in a migrated windows server setup

dss ds 526 Reputation points

After doing a migration from Window 2008 to Windows Server 2016, and transferring FSMO roles and everything went smoothly, however the problem comes when installing Exchange 2016 on Server 2016, i get an error straight away on step 1. "Organization Preparation" In log file the error is:

"The server side error is: 0x21a2 The FSMO role ownership could not be verified because its directory partition has not replicated successfully with at least one replication partner."

I resolved this by demoting old box (VM), but that sounds more of a "nuclear option" when the real issue is replication error..

How can i check replication is a success? Would DCDIAG show this or would i have to run Repadmin /replsummary

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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