You are not the only one. Porsche has not figured it out yet !
Nope not possible and wouldn't be good for your 12V battery either.
Tesla does this. Many people don’t have reliable cellular access from their garages. It also offloads data updates in both directions which is good for Porsche (pushes the cost) and the customer (it’s faster).
Understood but equally all of this can be performed when in a better reception area / on the move. The data transfers can wait given the nature of them.
^ This (I have terrible cell service at home). It also opens up a potential channel for hacking the car (though of course it may be possible to do so over the cellular connection as well, but much more difficult).
^ and this
Terrible cell service at home - especially in rural areas- along with porsche connect app does not work (again an issue with cell service)... so I can think of many reasons why utilizing a home wifi connection would be a necessity and should be enabled.
I'll quibble with this - at the end of the day there is probably still an IP address that the car is living at - at that point it doesn't matter if it's cellular or wifi - there is an IP address to "hit" - if you have an IP address you can direct traffic to that IP address and if there is an exploit available over WiFi there is an exploit available over Celluar.
I actually believe this car has two IP addresses, one for the telematics (OTA module - always or at least periodically on) and one for PCM. I wouldn't be at all surprised if Porsche's agreement with AT&T or Verizon doesn't provide for the telematics connection to be unreachable except from Porsche servers, and I also expect that OTA module to be the endpoint for an end-to-end encrypted communication with said server. A hack on the PCM is more likely All speculation on my part.
