To view your current license type and expiration date to ensure it hasn't expired.
If the registry is corrupted, uninstall previous versions (including trials), reboot, and perform a fresh installation. etabs license not recognized error 120 work
The lservrc file may be missing or corrupt. To view your current license type and expiration
To change the ETABS license manager port: uninstall previous versions (including trials)
If the error persists, it may be due to leftover registry keys from older or evaluation versions.