I need to park in my garage to charge and it's very tight, so I have to summon my car in and out, sometimes every day. I've had a lot of problems with the Tesla app either refusing to connect to the car, connecting to the car but then summon not connecting with a 'Reconnect' button appearing, starting to summon and then stopping mid way through then refusing to reconnect, a 'Server error' message, and variations of the above. It was really starting to get me down. In the five months I've owned the car, just in order to actually get the car out of the garage I've had to get in the passenger side and climb over to the drivers seat about 15 times. I've also had to climb in through the trunk three times and in through the drivers window once. I honestly don't know where the problem is. At first I suspected the car, then my internet connection (the garage is just on the cusp of where my WiFi extends and mobile data is patchy here) so I bought a WiFi extender, I even tried my old iPhone a couple of times but that worked inconsistently as well. I'm very happy to report that an alternative to the official Android Tesla app called 'Dashboard for Tesla' was recommended to me. The UI is pretty basic but the functionality blows the Tesla app out of the water. And it summons, every time. Sorry for the long post but posting just in case it saves someone else out there from the misery I've had to endure. For completeness, I have a Pixel 2 set to always update the Tesla app to the latest version and this has happened on all three software versions I have had since getting the car.