Will Melco N1 work if connected via home plug

[simoncn]

The audio data would go only via the switch. However, if you are using a UPnP control point such as Kazoo or Kinsky, status information would flow from the Linn to the control point and this would probably go via the router depending on how the control point is connected.

I haven't done the same experiment as you but I have experimented with removing the cable from the network port of my Melco N1 while playing music via the player port. If the Melco was set up with a DHCP address, the music stopped. If the Melco was set up with a static IP address, the music did not stop.