Nav/Athena behavior when disconnected

[jyoung8607]

Describe the bug

Tried to use navigation on the return leg of my road trip Sunday and had several weird issues:

1. The UI showed connect offline, although I seemed to be in good LTE coverage
2. I chose my preprogrammed home location from the C3 UI as my nav destination
3. Navigation never really started, but the Nav UI pane did come up
4. I tried to cancel navigation, but the Nav menu disappeared in favor of the Nav/Prime ad screen
5. Rotating among UI views, the Nav UI pane was still accessible despite this
6. If I selected the usual full-screen onroad view, the Nav pane would reappear on its own within about a minute

I drove in this state for about 90 minutes. To get connectivity back and make the nav pane stop popping up, I had to reboot the device at my next stop.

There were a bunch of times I tried to dismiss the Nav pane and had it come back. The instances I made note of were right at the end of the route, about 6:36PM and 6:41PM (might be off by a timezone). It popped back up after about a minute each time. I actually had the UI process die and restart on me right at the end too, but that could be the usual watchdog thing.

What hardware does this issue affect?

comma three

Provide a route where the issue occurs

3cfdec54aa035f3f|2021-12-19--17-16-31

openpilot version

master @ 16dd7ce

Additional info

There's several issues to unpack here.

The C3 UI showed I had good LTE coverage. I don't know if I had working Internet connectivity; I wasn't in a position to SSH in and check. Athena certainly thought I was offline. Device reboot was definitely needed to get it back.

Earlier that day, several drive-cycles (but not power-cycles) prior, I did spend time in an area that legitimately had no cell service. I drove into the area, stopped and parked for an hour, and started a new drive out of that area. I don't know when the Athena no-connectivity issue started, but it's possible that it never recovered from earlier that day.

Even if I had no Internet connectivity, the UI shouldn't have treated me as if I weren't a Prime/Nav subscriber.

It shouldn't be possible to lose the Nav settings/destination menu while still having the Nav onroad pane in rotation.

The Nav pane shouldn't have kept popping up unsolicited. That was weird. Maybe a nexus with #23281?

[tabdallah]

I have noticed this same behavior several times this week while on a cross-country drive. If I start a drive cycle in an area with no cell coverage, the device requires a hard power cycle to restore connect services once cell coverage is restored. The C3 indicates cell coverage correctly, but connect remains offline across multiple drive cycles until I perform a hard reset.