Environment
Novell ZENworks 10 Configuration Management with Support Pack 1 - 10.1 Authentication
Situation
After agents update to 10.1 from 10.0.3.2 they are unable to authenticate to the user source.
Resolution
This is fixed in version 10.1.1 - see KB 7001406 "ZENworks 10 Configuration Management 10.1.1" which can be found at https://www.novell.com/support
Additional Information
This problem can be caused if the Zen Loader and CasaAuthTokenSrv are not running on the 'same' account.