Etabs License Not Recognized Error 120 Page

This is the solution that resolves the issue in 90% of cases. ETABS installs a driver called the "Sentinel Protection Installer" to manage licenses. If this driver becomes corrupted or fails to update, ETABS will throw Error 120.

Firewalls often block the communication port used by CSI software. etabs license not recognized error 120

If you are using a physical red or purple USB key, the issue might be physical. This is the solution that resolves the issue in 90% of cases

According to documentation from Computers and Structures, Inc. (CSI), this error is primarily linked to: Firewalls often block the communication port used by

Navigate to the ETABS installation folder (usually C:\Program Files\Computers and Structures\ETABS [Version] ). Locate a file named . Open it with Notepad.

Delete any existing text and type the or Host Name of the license server. If you are using a standalone license, type localhost . Save the file and restart ETABS. Verify the Sentinel RMS License Manager