Etabs License Not Recognized Error 120 Work |verified|
ETABS License Not Recognized (Error #120) typically stems from incomplete, corrupted, or expired license files, often requiring deactivation and reactivation of the software. Key troubleshooting steps include verifying the lservrc file, adjusting system regional settings, or configuring LMHOST.INI for network licenses. Detailed troubleshooting steps can be found at CSI Knowledge Base. Licensing errors generated when running CSI software
Scenario 2: You Are Using a Network License
If your company uses a server to distribute licenses and you are getting Error 120 on your personal workstation:
According to CSI Knowledge Base, Error 120 specifically indicates that the license file is incomplete. This might happen if: An activation process was interrupted. etabs license not recognized error 120 work
- Check for any recent hardware changes or upgrades and re-activate the license if necessary.
- Disable any antivirus software or firewall that may be interfering with ETABS or the licensing system.
Repair Installation: If the license file remains "incomplete," uninstall any previous versions or evaluation copies and perform a clean installation.
Preventing Error 120 in the Future
Once resolved, take these steps to avoid recurrence: ETABS License Not Recognized (Error #120) typically stems
1. The Port Conflict and Firewall Blockade
The most common culprit in modern computing environments is the Windows Firewall or third-party antivirus software. The CSI License Manager communicates via specific TCP/IP ports. By default, this is often Port 5053 (though it can vary based on the CSI_license.dat file).
(mm/dd/yyyy) helps the license manager recognize valid keys. Run as Administrator : Right-click the ETABS shortcut and select "Run as Administrator" Check for any recent hardware changes or upgrades
If you actually need help fixing ETABS Error 120 (likely a Sentinel LDK license driver issue), let me know — I can walk you through the real solution.