Are you on 8.8 or 9.0?
We are using version 9
Have you looked at these log files?
On the client machine:
1. Issuser.log C:\Program Files\LANDesk\LDClient - Logs any attempts made to remote control the client.
On the core server:
2. exYYMMDD.log (look for the date/time of the issue) C:\Windows\System32\LogFiles\W3SVC1 - IIS log. Logs traffic to web server.
3. LANDesk.ManagementSuite.Information.log C:\Program Files\LANDesk\ManagementSuite\Log - Logs the signing of the signed rights document.