License Not Recognized Error 30 Etabs 2016 New Patched Official : On some machines, the regional format can interfere with the license reading process. : Try changing the PC's date and number format to US (mm/dd/yyyy) Troubleshooting ETABS 2016: Fixing "License Not Recognized" (Error 30) license not recognized error 30 etabs 2016 new If you want, I can: