Sonos stops when Apple TV is switched on

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I have 2 Play:1’s linked to my S2 app. Each Sonos has it’s own Alexa Echo Dot connected to it. Both Sonos speakers work fine normally (a few dropouts/buffering but nothing major).

As soon as my Apple TV 4K box is switched on, the audio that is being played on the Sonos speaker stops. If I close the Sonos app and restart it, either the speaker that I was listening to is missing from the Sonos app or the app can’t connect to my Sonos system at all. As soon as Apple TV is switched off, then after a short while, the Sonos app shows the 2 speakers again.

I’ve checked the ip addresses of everything connected to my router and they are all unique. I’ve tried making the 3 ip addresses (Sonos and Apple tv) static and rebooting the router but it’s made no difference. Anyone any ideas please?

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n1ckbarnesAnswer

Contributor I

Thanks @Corry P - everything connecting to the router is wireless.

I’ve changed the static ip addresses and rebooted the router and that seems to have cured the issue for now (I’ve not been able to recreate the issue since :))

I’ll bear in mind your suggestions should the issue reoccur

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n1ckbarnesAuthor

Contributor I

Hi @n1ckbarnes

If your router doesn’t have IGMP as an option, you can purchase a small IGMP-enabled network switch for under 40 creds ($£€). Connect the Apple TV to your network via the switch and the flooding will disappear.

It doesn’t, so I’ll have to raid the piggy bank. Interestingly, my router is “related” to the BT router in the link above, and I have split 2.4 / 5 GHz channels, but apparently it’s not affected…..

Thanks for your advice @Corry P :)

Corry P

Sonos Staff

Hi @n1ckbarnes

You’re very welcome!

Interestingly, my router is “related” to the BT router in the link above, and I have split 2.4 / 5 GHz channels, but apparently it’s not affected…..

Even if the BT router and the EE router were the same physically (internally, anyway), the EE router would never receive a firmware update from BT so you won’t be affected by that issue, just as @UKMedia suggested.

I should mention that if you have a Sonos device wired to your network via ethernet, you should connect that via the IGMP switch too.

I do recommend you first get in touch with our technical support team who will confirm that multicast is indeed the problem, before spending any money - unless you don’t mind returning the switch if it doesn’t help.

"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein

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