Avid Contributor I

Lost connection after changing my Network Switch

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So I had to replace my network switch as it failed. I have 4 Sonos Connect devices (one Connect Amp and 3 Connects).

Historically I had one connected to the Switch and then the other 3 daisy chained via cat5 cables. All was well.

Now my system “isn’t found” on the network. After trying a bunch of things I decided to hard reset each device (pressing mute/volume up button when powering on until orange light flashes and eventually solid green).

I then reset my app and started from scratch with just one device at a time. However it is still unable to find my device. I can see on my Router that the Connect Amp has an IP address so know it is connected.

But adding a device via the app and going through the “power on” just keeps saying no device found.

Any ideas?

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Ken_Griffiths

What type of network switch is it - Unmanaged, or managed?

If it’s the latter, then maybe see the link below for the recommended STP settings for such switches in a wired setup…

https://support.sonos.com/en-us/article/configure-stp-settings-to-work-with-sonos

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pbcAuthor

Avid Contributor I

Unmanaged switch.

Ken_Griffiths

Unmanaged switch.

I assume you’ve perhaps already tried different Ethernet cables (& Ethernet ports), between ‘Router & Switch’ and ‘Switch & initial Sonos product’, but have you tried wiring a different first ‘Sonos device’ as the root bridge, just to see if that may resolve your issue. Maybe it wasn’t your original switch where the fault was in the first place? .. (Just as a bit of a thought🤔?)

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pbcAuthor

Avid Contributor I

Have tried plugging into both switches. Multiple ports. Multiple cables.

Tried starting with each of the 4 devices. Same thing every time.

If I try and connect wirelessly, it actually finds the device. But then won’t connect to the network and asks me to try via Ethernet. And it starts again.

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pbcAuthor

Avid Contributor I

It’s driving me bananas. I literally see the device on my router. Only thing I can think of…is for some reason my phone is connecting to a different wifi channel or something. Pretty sure I have the 5ghz wireless off. But maybe will check that next. Ie is 2.4 vs 5ghz causing an issue??

Ken_Griffiths

Are you using the S1, or S2 (New Sonos), App? Presumably nothing has been changed on your router since you had this issue or have you reset your router?

Are you using a mobile only controller device that meets the current system requirements, as shown here:

https://support.sonos.com/en-us/article/sonos-app-requirements

Network for a WiFi connection needs to be 802.11b/g/n compatible and I recommend using security mode WPA2 personal - shouldn’t matter though for a wired link.

Ken_Griffiths

It sounds like it might possibly be a mobile Sonos controller device issue - do you have another (compatible) mobile, or tablet, that you can try, just to see if that may perhaps work for you?

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pbcAuthor

Avid Contributor I

iPhone 16. Old Sonos 1 app since that it all that works with the Connect line I have. Everything was working perfectly until I had to change the switch.

Maybe I will try turning off the switches and just attaching the Sonos directly to the router out of curiosity.

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pbcAuthor

Avid Contributor I

…and finally, that worked. Had to remove my network switches from the equation and hook the Sonos up directly to the router without any switches connected to the router. Then add each product. Worked.

Then disconnect the Sonos from the router, connected it to a Switch. Then reconnected the Switch. Still works.

Weird. Guess the Sonos products do not like to be setup when first connected via a network switch and not directly to the router?

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craigski

Local Superstar

What specific make/model of switch is it?

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