This section provides a description of replication connectivity problems that you might experience when Active Directory replication is enabled.
Network connectivity problems can make it impossible for domain controllers to form replication partnerships. Various events and errors can indicate a problem with network connectivity that is preventing replication from occurring.
To diagnose and fix replication connectivity problems, use the procedures in Event ID 1925: Attempt to establish a replication link failed due to connectivity problem.
Applies To: Windows Server 2016, Windows Server 2012 R2, Windows Server 2012