Recently I've been getting license error on multiple workstations. Users are working on drawings and sudden these messages appear:
License Error
Your license is invalid. Please contact your local authorized AutoCAD dealer.
AutoCAD Error Aborting
FATAL ERROR: This product has not been properly activated on this system.
The workstations had been working for quite awhile until this recent intermittent problem.
Thanks in advance for your help.
![Autodesk Design & Make Report](https://forums.autodesk.com/t5/image/serverpage/image-id/1350519iCB55845EBFC43016/image-size/large?v=v2&px=999" "Autodesk Design & Make Report")
