My Model 3 lives in the apartment building underground car park. My apartment is on the second floor, so there are several layers of reinforced concrete between my WiFi router and the car. Software updates require a WIFI connection. I tried to set up my phone as a WiFi hotspot, but it was painfully slow AND used all my data for the month AND was not completed. I tried to park the car as close as possible to my router, but it doesn't pick it up. I've installed a Tesla charging station that is connected to the electricity meter which also feeds my apartment. It is multi-phase. I like the idea of a WiFi Powerline repeater, but before I could try it, I would have to get an electrician to add an outlet to one phase of the feed to my charger installation. And I'm not sure if it would work! How can anyone find a solution to the Apartment WiFi update problem?