License Not Recognized Error 30 Etabs 2016 New

Set the date to a time when your license was still valid (e.g., 2018).

Open it with Notepad and ensure the license string is on a single line.

According to CSI Wiki , "Error 30" can be caused by local date formats that the Sentinel licensing system does not recognize. Go to > Region . Change the Format to English (United States) . Ensure the date format is set to mm/dd/yyyy . 2. Verify the License Service Status