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Seems recently, within the most recent Sonos app update (80.20.35) I have noticed cutting out on one or more speakers within my system only when streaming Apple Music with a track in Hi_Res or ~Lossless format. Sometimes the speakers bounce from one to the other or cutout intermittently and then temporarily come back. (6 One SL’s, 1 Move, 1 Sub Gen2) All speakers on Wi-Fi - 5GHz (eero mesh)

When this cutting out occurs I can see the Wi-Fi radio analytics spike to a ‘congested’ state within my eero mesh system. 

Streaming any of the other music services I used in the native Sonos app (Amazon music, Sonos Radio, iHeart, Sirius XM, ReListen) do not cause intermittent cut-outs or issues when streaming.

When I stream to my Sonos speakers via AirPlay directly from the Apple Music app I do not have the speakers cutting out intermittently when a track is streaming Lossless or Hi_Res.

This issue just came up in the most recent app update or perhaps it was the update before last week I noticed the issue. Things had been solid using the Sonos app for the last 4 months or so.

Is it just a matter of the Sonos speakers having more “chatter” or congestion/latency with Apple Music Lossless or Hi_Res playback within the Sonos application versus the other streaming services?

I tried a router shutdown & restart, unplugged all Sonos devices and powered back up one by one until they individually come back up and connected. IP addresses are all okay and not duplicated. Signal is strong or excellent to all Sonos devices. Did not solve the issue.

 

First, to my knowledge, Sonos has not yet implemented the new AirPlay 2 SDK which allows Atmos via AirPlay 2. I suspect they’re working on it, though, just not yet released. 

And I concur with your thought process, I suspect a certain level of wifi interference causing this, just enough to affect the bandwidth necessary for the higher level of those types of transmissions, but not enough to impact the so called ‘normal’ streaming. 

I do think if duplicate IP addresses were the issue, it would impact both types, although I’d mildly argue with your contention of duplicate IP addresses not ‘showing’, as most routers don’t have the capability to ‘show’ connections over time, but instead show ‘at the moment’. But that is neither here nor there.

You’ve done most of the things I’d normally suggest, save one. Beyond the other data in that linked interference FAQ, I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it. Don’t post the resulting diagnostic number here, they get sensitive about GDPR.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

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