Ensure that Windows Defender's Controlled Folder Access feature is not blocking ETABS from writing temporary security tokens to the ProgramData folder.
If the client machine cannot communicate with the server over the network, it will fail to recognize the license.
: Using an older version of Sentinel RMS that does not support your specific version of ETABS. Recommended Solutions
A brief network packet drop while using the CSI Activation Wizard can leave a truncated string within the license file. etabs license not recognized error 120 work
If you are running a network license or a local commuter license, the background service might simply be frozen. Press Windows Key + R , type services.msc , and press . Scroll down to find Sentinel RMS License Manager .
If you previously had trial versions or alternative editions of CSI software installed, old registry keys can corrupt fresh installations.
Once the prompt reads "Press any key to continue," hit Enter and verify that a valid license file has populated the directory. Recommended Solutions A brief network packet drop while
: Inconsistent date or number formats on your machine can cause recognition issues. Ensure your system date is correct. Try setting your PC date/number format to US (mm/dd/yyyy) .
How to Fix ETABS License Not Recognized Error 120: A Comprehensive Guide
Did this error start occurring after a recent or software upgrade ? I can provide more targeted steps based on your setup. Scroll down to find Sentinel RMS License Manager
Comprehensive Guide to Fixing the "ETABS License Not Recognized Error 120"
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.
If you are dealing with a complex corporate setup or an older environment, let me know you are running and whether you are deploying a standalone or network license so I can provide targeted troubleshooting steps! Share public link
If you are working on a network license, your client machine might not be able to connect to the license server properly.
Uninstalling ETABS, rebooting your machine, and performing a clean re-installation.