I just discovered this and have never seen it posted before so thought I would post it as a PSA. I noticed today that the car was not connecting to my Wifi even though there should be a strong signal. in fact it was not even finding my Wifi even though neighbours routers were showing up and they are much further away I checked my Wifi and found it had auto switched to band 13. On a hunch I did a bit of Googling and discovered that the car only supports the US bands of 1-11 not the European standard of 1-14. Most routers are set to auto switch to find the least congested band so every time your router switches to band 12-14 the car will lose connectivity. The only fix for this is to go into your router settings turn off auto but then you risk getting stuck on a busy band which could affect other devices in your house. I am actually able to change my router to US region which would fix the problem but looking at that it seems the US 5.0ghz wifi has bands in the US that are not used in Europe so looks like that could be a really bad idea since you could end up on a band that your european equipment will not recognise. I can't switch the 2.4 that the car used without also switching the 5.0 so that is probably a non starter. Personally I don't care that much I don't need the car connected to Wifi all the time. if I need a software update I will temporarily switch to manual but definitely one to add to the Tesla WTF list.