The "License not recognized" (Error 120) in ETABS typically indicates that the software finds the license file but considers it incomplete or invalid. This often stems from regional settings, corrupted installation entries, or activation desyncs.
Depending on whether you use a standalone or network license, try the following steps: Deactivate and Reactivate etabs license not recognized error 120 work
Error 120
If the ID isn't recognized, download and install the latest Sentinel System Driver. 4. Clean Install and Registry Fix The "License not recognized" (Error 120) in ETABS
Error message example:
“License not recognized. Error code 120” If server is virtualized If your error occurs
If your error occurs on a network setup, the issue often lies with the server connection or version compatibility: Upgrade License Manager : ETABS v17 and later require Sentinel RMS License Manager v9.2
If reactivation does not solve the issue, check these common technical conflicts:
