When attempting to trigger an AD replication from one DC to another using Active Directory Sites and Services or repadmin.exe, you may get the following error:

AD Replication error 8452:
"The naming context is in the process of being removed or is not replicated from the specified server."

The most common cause for this error is that you tried to replicate between DCs for which no DS replication connection exist. The replication attempt will therefore fail. As a workaround, try replicating to the target DC from another source DC. Or, create a new replication connection between the target and source DCs.

Open Active Directory Sites and Services.

In the tree to the left, locate t  ...