LUM Concurrent Licences Not Releasing

Sometimes when CATIA crashes or has not been closed down properly, the Basic Licence tool thinks the user is still using it. Unfortunately you cannot release the licence from the basic license tool or even remove it as it thinks it's in use.

This can usually be avoided by closing down CATIA correctly (by exiting first before shutting down the machine), but sometimes a problem occurs that can cause CATIA or your computer to crash.

To free up the licences, simply carry out the following instructions. Please be aware that this solution will release ALL licences on the LUM server – including those in use by other users who may still be working without issues.  Everyone will have to restart CATIA.

1) On the licence server hosting the LUM licenses, log in with administrator rights and stop IBM Network License Server service

LUM Concurrent licences not releasing

2) Navigate to the following file and open it in notepad

C:\ProgramData\IBM\LUM\I4LS.INI

3) Find the key ColdStart=no

LUM Concurrent licences not releasing

4) Change the key to ColdStart=yes, then save and close the file

LUM Concurrent licences not releasing

5) Start the IBM Network License Server service

LUM Concurrent licences not releasing

Notice all licences have been released.

LUM Concurrent licences not releasing