I just installed xCP, and I can't run Documentum Administrator because it can't connect to port 9084 for some reason. All the services are started. I did check twiddle.log and saw the following:
javax.naming.CommunicationException: Failed to connect to server USENTODDSL3C:9084 [Root exception is javax.naming.ServiceUnavailableException: Failed to connect to server USENTODDSL3C:9084 [Root exception is java.net.ConnectException: Connection refused: connect]]