pypilot disconnected at startup - Steps toward troubleshooting?

[AlanH]

Mine is stable now after setting all serial connections to "remember port" instead of "remember device". But I guess this only helps in my situation, maybe worth a try.

Yep, looked at that.  pypilot was already set to remember port and the other option is greyed out. What's even more annoying is that everything was working fine right out of the box.  This problem developed after I installed a second USB device and moved some GPIO pin assignments for my panel light.