I've got a Hifiberry DACPro running as a Roon endpoint off wifi (Raspberry Pi 4). I've upgraded to the latest software (20200708).
After a few days of operation, it fails to put audio out the RCA jacks, despite being accessible on the network.
If I log into it via the webui the roon content that it should be streaming is displayed.
A reboot usually fixes this, but isn't a great fix.
I've looked on my wireless controller and the signal stats for the device look very healthy: