If you have followed all the steps above and are still receiving the error, the lservrc file may have been generated incorrectly on the server side, or your Activation Key may be locked. In this case, gather the following: Your License Key.
According to the official CSI knowledge base, . etabs license not recognized error 120 work
Most of the time, this is a regional format issue. Switch your Windows date/number format to and restart the app. If that fails, deactivate and reactivate your license via the CSiLicensing tool. Official fix info here: CSI Wiki #StructuralEngineering #ETABS #CivilEngineering Licensing errors generated when running CSI software If you have followed all the steps above
For standalone licenses locked to a specific computer, any change in your system's hardware configuration (such as replacing a hard drive, updating BIOS, or changing a USB key) can cause the locking code to change. When this happens, the license file no longer matches your machine, and Error 120 may appear. Most of the time, this is a regional format issue
Sometimes the software just needs higher permissions to "read" the license file correctly.
It was a typical Monday morning for John, a structural engineer at a reputable firm. He had just arrived at the office and was eager to dive into his project, a complex high-rise building design using ETABS, a popular software for structural analysis and design. As he booted up his computer and launched ETABS, he was greeted with an error message that made his heart sink: "Error 120: License not recognized."