The directory server has detected that the host name and/or ports have been changed. If this is the only directory server ...

The directory server has detected that the host name and/or ports have been changed. If this is the only directory server in the forest, then this information will be updated in the local database. Otherwise, this information will be updated on a remote directory server. This message will repeat until this change is replicated to the local directory server. 
 
Additional Data 
Old DNS host name: %1 
Current DNS host name: %2 
Old NetBIOS name: %3 
Current NetBIOS name: %4 
Old LDAP port: %5 
Current LDAP port: %6 
Old SSL port: %7 
Current SSL port: %8