How to delete a license from a License Server? : Support Center

Foreword

When you use Network License mode, it might be necessary to delete licenses previously added. This is done with a program named Wlmadmin.

You have installed the License Server
You have prepared WlmAdmin program on a computer that has network access to the License Server
License Server itself is the simplest choice
WlmAdmin is part of Sentinel RMS Tools package

SentinelRMS x.y.z-Tools package can be downloaded from the Download page

From the license server, or from any computer in same network:

Start WlmAdmin.exe
Find the server (if necessary, add it to the defined server list)
Find the license feature name
Find the license.
You can check the current state, the start and end date if there is more than one license for the same license feature name
Right click on the license, then click on: Delete license from server and it’s file

Check if the license has been correctly deleted

License file is, by default, in the following location:

Folder : %CommonProgramFiles(x86)%\SafeNet Sentinel\Sentinel RMS License Manager\WinNT
File   : lservrc

So, you can also, after stopping the relevant service, edit the file.