Etabs License Not Recognized Error 120 Work Jun 2026
If these steps do not clear the "License Not Recognized" message, you may need to provide CSI Technical Support with diagnostic files for manual verification:
Check the . If it is not running, right-click it and select Start .
Just when John was about to give up hope, the ETABS support team called him back. After some investigation, they discovered that the issue was caused by a conflict with another software that John had recently installed on his computer. The ETABS license server was not able to communicate with the software, resulting in the error.
This issue is not unique to ETABS. It can also occur with other CSI software titles like SAP2000, SAFE, and CSiBridge, which use a similar licensing structure. etabs license not recognized error 120 work
If you are on a network, ensure the Sentinel RMS License Manager service is running in Windows Services ( services.msc ). If you have ETABS v17 or later, you must be using Sentinel RMS v9.2 or higher; older versions (v8.5 and earlier) will not recognize newer licenses.
Are you using a license or a network license managed by a server? Licensing errors generated when running CSI software
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 these steps do not clear the "License
John tried to recall if he had done anything differently the previous day, but his mind was a blank. He had used ETABS without any issues just a day ago, and now this. He attempted to restart his computer, thinking that maybe it was just a minor glitch, but the error persisted.
: Verify that your firewall is not blocking communication to the license manager on the server. CSI Knowledge Base Advanced Technical Steps Verify Locking Codes WechoID.exe
: If the service fails to start, note the error code. You may need to reinstall the license manager (Fix 5). After some investigation, they discovered that the issue
Complete Troubleshooting Guide: How to Fix ETABS License Not Recognized Error 120
Click , click OK , and restart your computer before launching ETABS. Fix B: Regenerate and Re-link the lservrc File
: It supports a wide array of international design codes (ACI, AISC, Eurocodes, etc.) for steel and concrete frame design.
In rare cases, ETABS cannot locate lserv.exe because the system PATH is missing the license manager directory.
