Arc TV sound cuts in and out.

So I think that I have determined that my continuing problem with periodic sound drops (every 12 minutes or so) have something to do with the combination of the Samsung Q80T, the Sonos Arc and my Apple TV. If I watch Atmos content through, for example, the Netflix app on Apple TV, I invariably get the sound dropouts. If I watch the exact same content through the Netflix app on the Samsung TV (i.e., independent of the Apple TV), no sound dropouts! Not surprisingly, if I watch the same content on Netflix through the Apple TV but using the built in TV speakers (i.e., unplug the Arc), there is no sound drop out, presumably because the sound out of the speakers is not Atmos. So it seems that the flaw is in passing the audio signal through the Apple TV. Could be the HDMI cable I guess, but I bought a high quality HDMI 2.1 cable, so I doubt that’s the problem. All device software is up to date. Maybe with the impending release of TvOS 15 the problem will go away, but I’m not hopeful . . .

Same issue as all of you. In my case, I noticed last Sony update disabled IP Direct; turned the option on and resumed watching stream @point where audio died without issue...only Sonos and / or Sony can give a definitive answer, but so far so good.

I have an X90J

I had the same problem and corrected it by ensuring my TV and Sonos products were connected to the same WiFi signal.  For whatever reason, my Beam went offline and when it reconnected, apparently it did not connect properly.  To connect the Beam to my WiFi, I removed the old connection and reinitiated as if it were a new connection.  Fro 2 days, all has been working fine.

A $50 soundbar wouldnt be giving us these fits. Sound cutting out every 15 minutes or so is annoying. Still no fix from Sonos 

Did you try and contact Sonos about your problem?

Has anyone actually found a permanent solution to this problem or have Sonos actually pushed a fix to resolve this? The cutting and dip in sound every so often is so annoying and ruins the listening experience of such an expensive piece of audio equipment. 

Are you sure your problem isn’t related to an assistant making the speaker duck?

No definitely nothing to do with an assistant. The issue seems to be getting worse with the audio cutting out more and more during normal viewing 

That’s not something I’m seeing with the Sonos Arc that I have here - however, I have seen forum posts in the past where users lay-claim that their Arc was doing this audio ‘ducking’ and they felt it might have been an ‘electromagnetic field’ from their TV causing some kind of effect on their Arc touch controls and MIC.

IIRC this was just a ‘belief’, rather than them having any evidence in support of their claim, but one or two users did say the problem went away (coincidentally, or otherwise) when they moved their Arc further away from their TV .. I’m not sure if they moved it downwards or forward or both.. but they claim the problem stopped.

My thoughts therefore would be to perhaps try testing their theory by moving the Arc away from the TV or by disabling the Arc touch controls instead and also uninstalling any voice assistant and leaving the Mic off, just to see if that has any effect, nothing ventured, nothing gained and all that.

It certainly seems that not everyone (like me) have this issue, so there might not be anything here that Sonos need to fix at this present stage, as the complaints are few by comparison, so it makes sense to try to find something that may (just may) fix it in the meantime.

i see this post from a year ago.  my arc continues to drop.  I have been extremely disapointed with my sonos investment.