Error 120 is rarely a hardware failure. In 90% of cases, it is caused by either a in the lservrc file, an overzealous antivirus , or user permissions . Work through the steps methodically, and you will likely be back to modeling shear walls and moment frames within 10 minutes.
(found in the ETABS installation folder) to confirm that your machine’s Ethernet Address and UUID match the criteria the license was originally issued for. If you have reformatted your PC or changed hardware, you must contact CSI Support to reset the license. Remove Corrupted Files : Check the C:\Windows folder for files with a etabs license not recognized error 120
This error usually triggers when the software can find a license file, but the data within that file is missing required segments or doesn't align with the machine's specific "Locking Code" (which includes the Ethernet address, CPU info, and UUID). Primary Fixes Error 120 is rarely a hardware failure
Several factors can contribute to the ETABS License Not Recognized Error 120. Some of the most common causes include: (found in the ETABS installation folder) to confirm