Volumio 2.909 running on an RPi 3B+ using only the WiFi connection. After a couple days uptime the device becomes unresponsive to Airplay or HTTP requests. I forced a reconnect using my WiFi router at 13:20 in the logs here: http://logs.volumio.org/volumio/qzhVLsv.html and everything begins functioning normally.
The last entry in the logs is a long series of the following entries.
volumio wpa_supplicant: wlan0: WPA: Group rekeying completed with 06:ec:da:e6:e2:4b [GTK=CCMP] Are these related somehow?
Attaching an ethernet seems to fix the issue, but if a Airplay audio device requires ethernet to work, it’s not very useful. Any help is appreciated