Hi Cornelis,

Not sure what you mean by "two routines or files in the utility directory"...

>>>>>a day or so, the same thing happened. License expired followed by  shutdown.

I think this is because license service cannot connect to license server for some reason.

Do you use VPN or Proxy server?

>>>>If I do a clean uninstall of my Mac and reinstall Montery, do I get rid of these annoying routines ? 

Not sure if this will help if the Internet connection will be the same as now.

What if you turn off Internet connection (turn off Wi-Fi, pull out Ethernet cable)?

Are you able to launch AutoCAD?