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.
Right-click the Windows Start button and select .
The computer's internal clock does not match the real-world time zone, triggering anti-tamper mechanisms.
For a step-by-step walkthrough of the reactivation process and date-related fixes: etabs license not recognized error 120
An incomplete standalone registration string is best fixed by recycling the product key directly through CSI server validation.
(the default for Sentinel RMS) is open and not being blocked by a firewall or antivirus software. Re-run the License Activator: In the ETABS installation folder, find and run CSiLicensing.exe LicenseRequest.exe
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. The "License Not Recognized Error 120" in ETABS
If the license server has rebooted, the licensing service might not have started automatically.
Navigate to C:\Program Files (x86)\Computers and Structures\Sentinel RMS Utilities\ (or the specific version directory). Run to check the status of your active pools.
An incomplete license string often happens if an activation sequence is interrupted by network changes. Close completely. The computer's internal clock does not match the
Uncheck the box that says Click OK and restart your computer. Advanced Troubleshooting: Clean Reinstallation
If your utilities are legacy versions, download the newest matching pack from the Computers and Structures Support Portal to synchronize security keys. Method 2: Configure Reservation Files
If you previously installed an evaluation or trial version of ETABS, hidden remnants can block authenticated user profiles.