Problem
When opening Thinprint Management Console and try to open the “control panel” it just spins and never opens.
Cause
Permissions issue either on the folder C:\Program Files\ThinPrint License Server\WebApps\um or in IIS.
Solution
1. The account which is logged into the console should have local admin/domain user permissions.
2. The folder C:\Program Files\ThinPrint License Server\WebApps\um should have full permissions for that user account.
3. ASP.net impersonation should be disabled in the Thinprint website.
4. Restart IIS services and try open the control panel again.