Etabs License Not Recognized Error 120 !!better!! -

The "License Not Recognized Error 120" in ETABS typically occurs when the software cannot communicate with the Sentinel RMS License Manager or find a valid license file. This issue is common after Windows updates, server migrations, or changes to network configurations.

Check Tools:

Use the WlmAdmin.exe tool to see if the ETABS licenses are visible and not expired. Adjust Windows Firewall Settings etabs license not recognized error 120

1. Close ETABS completely.
2. Navigate to your installation directory (e.g., C:\Program Files\Computers and Structures\ETABS 2019).
3. Look for the license file (often named lservrc or similar, depending on your version).
4. Rename this file to lservrc.old (do not delete it yet).
5. Run the License Authorization Wizard included in your installation folder.
6. Re-enter your license key to generate a fresh license file.

This error usually triggers when the software can find a license file, but the data within that file is missing required segments or doesn't align with the machine's specific "Locking Code" (which includes the Ethernet address, CPU info, and UUID). Primary Fixes The "License Not Recognized Error 120" in ETABS