I have a sonos ARC and sound keeps cutting out for 1-2 seconds and then picks back up. My sonos was fine for about 1 week after purchasing but now the sound will cut out periodically. Here is my diagnostics number 103248445. How can I fix this issue?
I had this problem yesterday and this morning. I had to power cycle the Arc to overcome. There was a Sonos update yesterday, not sure if that was related. 1590010709 is my diagnostic number.
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It’s encouraging to see a response from the staff. I’ve not had a reoccurrence of the problem and will leave it at that for now especially given your findings. Your support staff can deal with people with more important issues.
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I have a sonos ARC and sound keeps cutting out for 1-2 seconds and then picks back up. My sonos was fine for about 1 week after purchasing but now the sound will cut out periodically. Here is my diagnostics number 103248445. How can I fix this issue?
I have the same issue. My diagnostic number is 1533580006.
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Let us know how you get on with the advice above.
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Hi, I have the same issue. A couple of days after installing the arc is cuts out every few seconds. The hdmi used is the one that came with the unit and my tv has earc (Samsung 90t). The only way to fix is to pull the unit off the wall and unplug and replug the power. This can’t be the solution and I need a fix that’s permanent. After day or so it repeats.
I won’t be buying Sonos again. Spent so much money on kit and my arc keeps cutting out
Samsung and Sonos firmware updated yet and can’t even watch some freeview channels
sonos support said to use the optical cable this was fine for a while but audio keeps cutting out. Wi-Fi is all ok in my house no problems there
Avoid Sonos and Samsung at all costs
same Issue Here. I Have Sony A80J , I cant watch any Movie with Atmos sound.
What source App are you using? If it’s Netflix, then ensure you have their (higher level) premium subscription and that Dolby Atmos is shown near to the title of the TV/Show - Also what is the current audio output that’s showing on the now playing screen in the Sonos App when you’re playing any Atmos source?
Had this for about a month now. Very annoying. Resetting the whole system has been done without it doing anything.
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Got this sorted on my system. I swapped out my HDMI cable.
I went all round the houses only to discover it was something so simple. 🤦🏼♂️
Incredibly disconcerting that this problem hasn’t been resolved. My Arc is barely three weeks old and had this issue almost instantly.
I’ve submitted various diagnostic reports to Sonos and the best solution I’ve been recommended is to factory reset our system, which I haven’t had an opportunity to do yet.
Unless there is a dependable fix soon, I might have to return the arc.
It’s bonkers to me that this issue can go so widely reported and a solution hasn’t been found. This thread started around 2 years ago!
Good tip. Will try that as well.
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As someone who is also experiencing this issue, unplugging the Arc, and plugging back in has been able to fix the issue for a little while (usually about a week). This cannot be the fix we are expected to continue to utilize for years to come.
Hi, I’m having the same issue. It keeps disconnecting and defaulting to TV speaker. Please help.

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I’m now getting this 2-3 times a week and its becoming annoying.
You perhaps may also find this thread helpful …
Thanks for answer. Not my issue. I see “Atmos” in the app. Also I have the same issue with the AppleTv .
But the Cutting Off are anointed, I hope Sonos fix this.
Hi
Let us know how you get on with the advice above.
We're here to answer any further questions you have.
same Issue Here. I Have Sony A80J , I cant watch any Movie with Atmos sound.
What source App are you using? If it’s Netflix, then ensure you have their (higher level) premium subscription and that Dolby Atmos is shown near to the title of the TV/Show - Also what is the current audio output that’s showing on the now playing screen in the Sonos App when you’re playing any Atmos source?
Yes. I have the Netflix premium Suscripcion.
I see “Atmos” in the Sonos App when I play movies with Atmos sound. Is not the issue, I have Cutting off when its play movies.
Thanks for answer! And I hope Sonos fix this issue.
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