The directory replication agent (DRA) received and discarded an intersite replication message because it has an incompatible message version number. You might have different versions of the directory. Make sure that all directories are running the same version of the Windows Server software.
Event Information
The local domain controller received an intersite replication message with an incompatible message version number. The message was ignored.
Verify that the domain controllers are running the same version of the operating system
