Device drops off network

I set up my first Raspberry Pi 3b+ with a HiFiBerry Dac Plus Pro last night. Had to roll back Volumio to version 2.619 in order to get it to recognize the DAC (latest version had no sound). Plugged it into my network, plugged it into my stereo, tested streaming from Spotify and it all worked great. Went to bed.

This morning when I woke up I went into Spotify and looked for the device, it didn’t appear on my network. Tried logging in from computer, no dice. Restarted it and it came back up.

How do I keep it from dropping off network? I have WiFi turned off and it’s plugged into my Eero with an ethernet cable. As it’s my first Pi, don’t know much about troubleshooting so any suggestions would be helpful.