Etabs License Not Recognized Error 120

The most common cause is ETABS looking in the wrong place for its license.

[Open / Resolved] Next Steps: [e.g., Assign to IT for license server check / Contact CSI support]

The lservrc file contains your text-based license string. If this file becomes corrupted or is placed in the wrong directory, ETABS will throw Error 120. etabs license not recognized error 120

Are you using a or network (server) license? What version of ETABS are you running?

This error effectively locks you out of your work. It indicates a breakdown in communication between your computer (the client) and the machine holding the license (the server—either a physical computer in your office or a cloud-based license manager). The most common cause is ETABS looking in

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Right-click on or My Computer and select Properties . Click on Advanced system settings on the left panel. Are you using a or network (server) license

The background licensing service is stopped or blocked.

Ensure both and Public checkboxes are ticked for these applications.

Switch the setting to to enforce the mm/dd/yyyy notation.

Firewalls often block the communication between ETABS and the license server. You must allow exceptions for the license manager. Open Windows Firewall with Advanced Security.