I’ve got an Rpi3 using both the onboard WiFi, which works great, and a USB WiFi Dongle which is only working intermittently. I’m using the dongle to do some WiFi scanning with tshark. Just running tshark on a regular Raspian Jessie image works great. However, running it on resin2.2.0+rev1 is unreliable. The dongle works for a minute or two, and then it disappears as an available device, then reappearing moments later.
Does anyone have any suggestions on how I can troubleshoot this?