Autocad license manager suddenly not functioning

The license manager is not functioning or is improperly installed error ! has anyone experienced and resolved this issue? student in the middle of a project and cant continue… Shes uninstalled and reinstalled and no luck yet,

perhaps a filter issue?

I’ve had this issue, and after reinstalling it didnt work and it was a filter issue. this was after a half year of working with autocad and the filter didnt make any issues.

I had it & just had to shut the computer for couple of hours. The first time I had it I gave it to my IT & he did it. Next time I did it myself & it worked!!!
I hope it’s an easy fix…

It happens from time to time, sometimes just restarting AutoCAD can help.
multiple times if needed.