AirPlay - fails after 5 minutes

I have a RPi 3B, and the latest version (not 2.0) of Volumio.

I can stream to Volumio from my iPhone or Mac, but after about 5 minutes it fails. The music simply stops playing and I get an error icon in iTunes (on the Mac).

I can play from a USB drive for hours, with no failure.

Any thoughts?

I never experienced that, could you please do when it happens

sudo journalctl -f

from ssh and paste here the result?