I resove the problm after my department switch the Lumerical 2021 to 2022 version. We also switch the remote desktop connecting programm. We use to work with X2Go remote  desktop to connec to the server. After changing the remote  desktop programm and updating Lumerical the problem was solve. Since i am not the server admin in our department coulnd debugg the problem to give you more information. My best guess is that something was overwritten the last time the licence was checked in and the programme goes into this infinite licence check loop. If you have resolve the problem please let me know.