We know that Autopilot is using high precision GPS maps and other data it downloads along the way, but today's outage on AT&T network shed some new light on the importance of this access. I knew something was not right on my commute back home ; Autopilot would ping pong like crazy and would drift during turns in a very unusual pattern. Even on straight lanes. When I saw the absence of traffic data I initially blamed the last firmware update and I stopped at a gas station (a first in 2,5 years!) to reboot. It quickly saw that I had no data access after the reboot but I was not sure it was the source of the impact on AP. It became clear when I used my phone Hotspot access. AP went back to normal almost instantly. For those of you that did AP without access did you have the same experience? If confirmed it would appear that internet access really is one of the secret sauce of AP superiority over the other level 2 systems (ie Mercedes).