This is a software license?
I've never had this problem on windows. We had a period where we had to run the license on one of our workstations, since the server we had was running a version of windows server that was too old to work with the codemeter software. Anyway, shutting down that workstation when everyone left the office and booting it up again in the morning never gave issues. You didn't even have to log in a user on it.
We also have macbooks using the same network license (though not running the license server) without problems.
Erwin Edel, Project Lead, Leloup Architectenwww.leloup.nl
ArchiCAD 9-26NED FULL
Windows 10 Pro
Adobe Design Premium CS5