Etabs License - Not Recognized Error 120 [top]

If you use a standalone license tied directly to your machine, the issue usually lies within the local lservrc text file. 1. Re-generate the License File Using Leveler

Wait for the confirmation message, then paste your original activation key into the field and click . 2. Clean Up and Rebuild the lservrc File

Right-click the official ETABS installer executable and select Run as Administrator .

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

Follow these steps in order to resolve the issue, ranging from simple checks to more technical configuration changes. 1. Check Network Connectivity

According to documentation from Computers and Structures, Inc. (CSI), this error is primarily linked to:

Often, restricted user permissions prevent ETABS from accessing the license system. If you use a standalone license tied directly

Sometimes, ETABS fails to write the license file to the installation folder due to restricted user permissions. Close ETABS completely. Right-click the ETABS shortcut on your desktop. Select . Attempt the activation process again. 3. Check System Date and Time

Use server logging to track usage patterns. Summary Table Possible Cause Immediate Action No Network Check VPN or LAN connections. Service Stopped Restart "Sentinel RMS License Manager" on the server. Firewall Block Allow ports 1138, 1139 in Windows Firewall. Wrong Server Name Edit csi_lm.ini on client computer. All Licenses Used Check usage via WlmAdmin.

: This tool is often mentioned in the context of software that is not officially licensed. Misusing it could violate your software agreement, and CSI technical support will not provide assistance for issues arising from its use. Proceed at your own risk. Adjust Windows Firewall Settings Follow these steps in

Ensure and Set time zone automatically are toggled On . Click Sync now . Phase 2: Resolving Standalone License Issues

This prevents the software from opening and accessing the network or standalone license. Recommended Troubleshooting Steps: Restart the License Service: Services.msc on the license server (or local machine for standalone). Sentinel RMS License Manager Right-click and select Verify the License File: Ensure the file is present in the ETABS installation directory. Check if the license has expired. You can use the WlmAdmin.exe tool to verify the expiration date and number of users. Check Environment Variables: Ensure the system environment variable LSFORCEHOST

Choose , click Next, select UDP , and enter 5093 in the Specific Local Ports box.

One of the most common issues ETABS users encounter is . This error essentially means that the ETABS application cannot establish a handshake with the license server, even if you believe your license is valid.