Novell ZENworks 10 Configuration Management
Rights Based Remote Control Fails if the Server Service is disabled or does not exist on the client workstation.
The following error will be found in the WinVNC.log:
"Rights Authentication failed. An internal error occurred while communicating to ZENworks Management Daemon. Contact Novell Technical Services."
This is fixed in version 10.1 - see KB 7001200 "ZENworks 10 Configuration Management with SP1 (10.1)" which can be found at https://www.novell.com/support
Workaround: Enable and start the "Server Service" on the workstation.