My Beam is all installed via WiFi and I'm very happy with it. However I thought I'd hard wire it to my network as I have fixed connections to most of the permanently connected devices. Unfortunately (tried 4 times now) when I connect a network cable after a few seconds all my home network dies. Symptoms from another PC is that I can no longer ping the gateway (192.168.0.1) any more. Unplug the Beam and it recovers.
Network is Virgin Media SuperHub -> TP-Link T2600G switch -> devices.
Any thoughts would be appreciated.
Thanks - David
Best answer by ratty
Background reading: https://en.community.sonos.com/troubleshooting-228999/sonos-and-the-spanning-tree-protocol-16973