Leftover files from previous installations can interfere with the new license.
If your organization uses a network pool, your local machine needs an explicit instruction pointing to the host server.
Error #120 typically indicates that the license file is incomplete or corrupted
: Discrepancies between the system date and the license's valid period, or an unsupported regional date/number format. etabs license not recognized error 120
This guide will walk you through everything you need to know about the , from understanding why it happens to the exact step-by-step solutions to get you back to work. We'll cover basic troubleshooting, advanced fixes for network users, and how to prevent the error from returning.
Your machine needs to know the exact IP address or hostname of the license server.
: If the error appeared after a fresh update, Leo might need to uninstall the CSI native image using the installer to clear out conflicting old data. Network Pathing : For office setups, adding an LMHOST.INI This guide will walk you through everything you
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 —
: Sometimes, the PC's regional settings clash with the license server. Setting the date/number format to US (mm/dd/yyyy) can resolve recognition issues when running tools like Standalonekey.exe Native Image Cleanup
The file containing your license string is missing, blank, or corrupted. : If the error appeared after a fresh
Sentinel RMS licensing is highly sensitive to time discrepancies. If your system clock is incorrect, the license will be flagged as invalid.
: Ensure you are running the license activation tool (located in the CSiLicensing
Right-click the official ETABS installer executable and select Run as Administrator .
Sometimes the internal "license level" (e.g., Ultimate, Plus, or Standard) gets reset.