Contributor I

Troubleshooting: Wired Sonos causes disconnects for all wired devices in network

22 replies
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Hello,

I have a network setup, where I have a Zyxel modem connected to the ISP, with 2 WiFi APs connected in LAN ports, and an ethernet switch connected to a LAN port directly in the modem as well. The ethernet switch connects the rest of the wired devices in the house.

When I wire my Sonos Beam, it creates the SonosNet mesh and the rest of the speakers connects to this, everything looks fine. After the Sonos has been connected and everything is set up, random disconnects starts happening on my network. Every device connected through the switch loses connectivity to the modem. The devices connected through the switch still has connectivity between them, but the modem seems to have dropped off the network. The WiFi APs are still online with connection to the internet though, so I know the modem is still online. And the switch is working since the devices connected can still ping other devices on the IP they had before the modem dropped.

When I remove the ethernet cable from the Sonos Beam, the network drops stops happening.

Without the SonosNet, I’m having problems pairing devices when they are not connected to the same AP. If I’m in one end of the house, I will see the Sonos devices nearest me. When I walk the the other end they drop out and the others appear. Pairing between them is almost impossible. This problem disappears when using SonosNet, but then the network disconnects happens.

Any help would be appreciated.

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J

John B

Is the switch a managed switch? Does it have STP enabled?

M

miklenAuthor

Contributor I

It’s an unmanaged switch. I don’t know about STP. I’ll try and see if I can figure it out from the model.

ratty

Is the Beam the only wired device?

More details of the switch and APs would be useful.

M

miklenAuthor

Contributor I

The switch is a TP-LINK TLSG108 (https://www.tp-link.com/us/home-networking/8-port-switch/tl-sg108/). I can’t find anything about STP in specification or datasheet, so I’m guessing it doesn’t have it.

The APs are an old Apple Time Capsule and an (also old) AirPort Express. They are both wired directly to the modem. Which is a Zyxel VMG8825-T50. The modem is running DHCP and the Time Capsule is in bridge mode.

ratty

The Airport Express will obviously also need to be in bridge/AP mode.

Is the Beam the only wired Sonos device?

M

miklenAuthor

Contributor I

Yes, it’s also in bridge mode. Forgot that it’s a router in it’s own right and not just an extender.

Yes, the Beam is the only wired Sonos device.

ratty

It sounds like it’s the Zyxel router that’s intermittently disabling the LAN port connected to the switch. Maybe its objecting to the STP traffic it’s seeing from the Beam.

M

miklenAuthor

Contributor I

Okay. I’m new to STP, so I don’t really know what it is. Would I be able to see something like what you describe in the Zyxel logs? Is there anything I can do to make object?

ratty

If the Zyxel is blocking the port it ought to leave a trace in the logs.