Ich habe jetzt in /var/log/univention/management-console-web-server.log folgendes gefunden:
09.12.14 15:26:47.907 MAIN ( PROCESS ) : UMCP_Dispatcher: check_queue: invalid session: sessionid='3d4e4fac-50b9-4a2e-b1c4-a27c3777cd26'
09.12.14 15:26:47.908 MAIN ( PROCESS ) : CPSet (192.168.0.13:57819) response status code: 401
09.12.14 15:26:47.908 MAIN ( PROCESS ) : CPSet (192.168.0.13:57819) response message: None
09.12.14 15:26:47.908 MAIN ( PROCESS ) : CPSet (192.168.0.13:57819) response result: None
09.12.14 15:26:58.460 MAIN ( WARN ) : SessionClient(0x3d821d0): connection to UMC server failed
09.12.14 15:26:58.460 MAIN ( PROCESS ) : Failed to create UMC connection: Connection failed
09.12.14 15:26:58.461 MAIN ( PROCESS ) : CPRoot/auth: username: None, status code: 401
Hilft das weiter?
Gruß
Thomas