Not Recognized Error 120 — Etabs License

Windows often disables network adapters during sleep modes, breaking network licenses.

Verify that , UUID , and Host Name boxes are selected. Take note of the displayed Locking Code string.

Add the C:\Program Files\Computers and Structures directory to your antivirus exclusion list to prevent security software from isolating license-validation files.

If you use a network/server license, your computer needs an explicit path to find the host server. etabs license not recognized error 120

If the standard reactivation doesn't work, the community often points to these deeper causes:

Launch the integrated activation wizard via your Windows Start Menu or directory folder.

Often, restricted user permissions prevent ETABS from accessing the license system. Windows often disables network adapters during sleep modes,

Add an exception for (the license manager executable).

If the above steps fail, a clean reinstall is recommended to clear hidden configuration errors.

and your decimal separator to a period (.) to ensure the license file is read correctly. Check System UUID To break through Error 120

Check the column. If it is not running, right-click it and select Start .

To break through Error 120, Leo recalled the standard fixes recommended by Computers and Structures, Inc. (CSI) Reactivate the License : For standalone licenses, the most common fix is to deactivate and then immediately reactivate

Check if your "Locking Code" matches the one tied to your active license. Preventing Future License Errors

Press the , type environment variables , and click Edit the system environment variables .