WiFi Hotspot, No Connection to Internet

This must be rampant as it has also occurred on a 2023 GMC Canyon Denali.  All the ‘soft’ reboots did nothing. A case was created and elevated to be told to take it to the dealer it might be a bad module but I disagree as the can see and ping the cell module. I just cannot get the system to allow sharing wifi with other devices. It must be hardcoaded one-time use setting that cannot be undone. So I will have the dealer go through the same door dance and results will probably be DOA. So much for the $1500 not optional feature on the Denali.