Well Matt, it looks like he and
@Saijin_Naib are both experiencing it with some frequency. And just because something is a corner case doesn't mean it shouldn't be explored. Sometimes this is how other problems get fixed, as corner cases often expose internal behavior that usually remains hidden.
Now, granted, there are only so many people with the required knowledge, and their time is a precious thing. I get that. Possibly
@n8lbv is a little strident in his pursuit, but that is always the case when a user has a problem - they want to solve it. I'd cut him some slack since he mostly seems to be seeking advice on how to troubleshoot and track down the root cause, possibly so he can fix it and contribute back.
I'm willing to work on kernel recompilation, as I believe this is likely the root cause - the Wifi Driver subsystem got a SIGNIFICANT overhaul in the 4.x kernel series. Many cards which had issues or just plain -didn't work- in 3.x will Just Work in 4.x. I am having some trouble getting started, but possibly the fall and maybe winter months will provide the time I need to get a compilation and testing environment set up. Anyone have a personal backup copy of the discuss.dronekit.io forums for the past 3 years?
However, I'm also waiting to see the results of the log files from a flight where this happens. Might be very illuminating