The error code literally translates to "Replication access was denied". Common triggers include:
Ensure the _msdcs zone is healthy and populated with records on your primary DC.
If you are seeing the error while running tools like DCDIAG , you've hit a classic Active Directory permissions or configuration roadblock. This error typically means a Domain Controller (DC) is trying to pull replication data but is being told "No" by its partner. Why is This Happening?
