The floating license key is not working

Could you please perform the following steps:

  1. Check that the license file is readable by user ‘nobody’? You can ensure this with the command “chmod a+r sls.conf”.
  2. Restart the license server with the command “/etc/init.d/StarDrop_sls restart”.
  3. Send us the log file sls.log which, if in the default location, is in the /usr/local/StarDrop64/sls/var/log directory.

If you have any questions about going through these steps, please contact us at support@optibrium.com.

More resources

Switching to StarDrop is easy: Your step-by-step guide

If your current software has hidden costs, performance that can’t keep pace, poor support, or limited visualisation options, it might be time for a change. The good news is, switching to StarDrop is easier than you may think and this guide will walk you through every step.

29 July 2025