Volumio error log files

I’m having a lot of trouble with Volumio, RPi3 & Hifiberry AMP+.

  1. Volumio WiFi only works sometimes despite strong signal.
  2. Hifiberry AMP+ sometimes stays silent after

I need to troubleshoot this myself. I want to know which log files on the Linux server are interesting to check out, given these problems?


To see what goes on:

sudo journalctl -f