Hello,
I've had an RPi3(sd card and external HDD connected to it) run Rune for a few months. Today I couldn't connect to it via WiFi, moved it over to where my only ethernet cable is, connected it that way and it still did not connect to the router. I rewrote the SD card then connected it again, using ethernet and this time it connected, but if I try to connect it to WiFi it disconnects from ethernet and does not successfully connect to WiFi.