If you are using a physical red or purple USB key, the issue might be physical.
The is a common issue typically encountered when the software's licensing system, Sentinel RMS, fails to validate the license . This often occurs even after a license update or a fresh installation. 1. Core Causes of Error 120 etabs license not recognized error 120
To get her project back on track, Sarah follows the standard "investigation" steps recommended by Computers and Structures, Inc. (CSI): If you are using a physical red or
extension. Deleting these files and then resetting toolbars within ETABS (Options > Reset Toolbars) has been known to clear internal registry conflicts that trigger recognition errors. CSI Knowledge Base Summary of Troubleshooting Tools These utilities are located in the CSiLicensing subfolder of your ETABS installation: Licensing errors generated when running CSI software Jul 7, 2568 BE — Deleting these files and then resetting toolbars within
Open "Services" (type services.msc in the Start menu). Locate: Find "Sentinel RMS License Manager."
