Lost surround and sub ( after update ?)

I am one of those people. I initially noticed the issue with the internal tv apps but subsequently also noticed the issue on Apple TV 4K as well as cable box. The issues occur even if those third party sources are completely disconnected from the TV i.e. isolation.

Thanks. Further question, did you disconnect, reconnect, and reboot everything after you disconnected the external sources?

So I’m guessing this still hasn’t been fixed (as of 14.8.1) ?Going crazy over here. Been dealing with random drop outs and ‘stop working so gotta reset everything’ for over a month now on my 5.1 ( arc, sonos ones sls and sub3) system.

it’s so annoying especially since resetting takes a long while. 
 

Unacceptable for a 2000$+ system. Imagine yout Oled randomly going black all the time. People would be outraged. Just roll back the update until you fix the damn issues? Is that so hard?

This has been my first experience with sonos and honestly it’s a pretty bad one. 
 

Is it even possible to get a full refund considering the return-to-store 30 days thingy has passed? Considering the hardware isnt working as advertised ? ( Romania here ).

I’ve been experiencing this issues too, I normally don’t post on forums like this but I love my Sonos stuff and this has been such a bummer. I’m running a 2021 Apple TV 4K with LG C9 (and Arc with Sub and surrounds). Not only do I lose the surrounds and sun occasionally/they fall out of sync, but I’ll also lose sound entirely every now and then for 2-3 seconds. Totally takes you out of whatever you’re watching. I have noticed that there are times when the sound cuts out, that the Dolby Vision notification from my TV pops up. It doesn’t happened every time, but that leads me to believe that something somewhere is losing connection for a brief moment and is messing things up. I’ve also noticed that I get the issues most when watching something with Dolby Vision/Atmos. For instance, I’ve been watching Stranger Things and will get weird issues at least 4-5 times throughout and episode. I’ve also been watching Better Call Saul (amazing show by the way) and won’t have any issues for an entire episode at a time. Oddly, I also watched the first two episodes of Obi Wan Kenobi on Disney+ and had 0 issues then too. I’m really hoping a fix is incoming this week, I’m hosting a movie night on Friday. 
 

I tried to watch Stranger Things with my C9’s built in audio and it’s awful…I’ve been spoiled by my Sonos system and I’m super bummed at what’s been going on. 

@Chris85 @PeterYo Just a reminder, that even if you think others are reporting/diagnosing the issue with Sonos, it will really help if you call Sonso support and log support diagnostic numbers with them directly, as it will make Sonos more aware of the issue and help them hone in on what the issue is. More data will likely mean a quicker fix.

Had hoped this was fixed but last night I yet again experienced the same problem, rears dead and sub off even though they’re all showing as working in the app. Still with the same odd problem too where you toggle the switch for the sub to off and it actually turns it on. 

The suggested TuneIn workaround did help fix it without powering everything off and on and hoping for the best. I just played Virgin Radio and switched it off and on a few times until the rears popped back into action and then switched back to TV and had things working fine.

I’m at a bit of a loss as to what’s going on here with Sonos and their inability to fix this. I’ll keep submitting diagnostics but like many I’m very frustrated with waiting in a queue to get support agents who don’t know anything about the problem and want you to run through steps you know won’t help.

I’ve done the email to Patrick Spence thing but don’t expect much from it. 

Honestly, this is all just really disheartening and not at all what I’d expect from Sonos.

Apple TV 4K 2021 Model A2169 ( 64GB) tvOS 15.5 

Thanks to my kids pushing me to catch up on Stranger Things so we could all watch the latest season together, I started the binge yesterday. Made it through first four episodes season 1.

Streaming this series from Netflix app from the Apple TV 4K 2021 in 4K to my LG CX TV, Sonos Arc, Gen 3 Sub, pair One SLs all working as intended. I didn't notice any drop outs or disconnects. Signal displayed as Multichannel PCM 7.1 on the Sonos app since I have my TV sound/audio set to “pass through mode” 

I do have the Costco version of the ARC which means it is a microphone-free version of the Arc sound bar ( no voice control built in). But not sure if there are any other internal hardware differences.

FWIW, I am running a backward compatible Wifi 6 Asus Mesh Network in my house. With the ASUS ZenWiFi AX6600. * This is an awesome setup BTW, one of the most power WIFIs + signal I've ever experienced in every corner of my home. 

I also keep up with all firmware updates across my devices. But as I commented previously, I haven’t reset or retuned ( Trueplay) my Sonos 5.1.4 system since I started to read about some having disconnect problems and I'll hold off on the for now.

I did a hard factory reset of the TV.

I think there might be an issue with your setup somewhere as you should be receiving Atmos for that. Potentially don’t have Atmos enabled on your AppleTV?