Common errors such as "License Not Recognized" or "Expired License" can often be resolved with these steps:

: If you have a license for a more recent version (like ETABS v17), you can sometimes run ETABS 2016 by copying the lservrc license file into the ETABS 2016 installation folder. Troubleshooting Activation Issues

: If using a network license, ensure your server is running a compatible version of the Sentinel RMS License Manager (at least v8.6 for ETABS 2016). Risks of Unauthorized Activation