Hello, are there known issues with ethernet connectivity and Volumio on the RPi? I have no lights on the ethernet socket. I have tried several different cables but nothing seems to be working.
I’m using the same S/W rev into a PI4/4GB and a Topping D90. So should behave similarly to your setup. Ethernet port lights up OK for my setup.
Have you tried running a SD card loaded with standard Raspberry PI to see if the Ethernet works OK there? Is the Ethernet cable back to the router OK?