Arc TV sound cuts in and out.

I don’t know if it’s SONOS or the tv manufacturers, just wish they’d get this crap straightened out. It’s getting old! 

My living room setup: Samsung 75” Q80T, Sonos Arc, 2x Sonos One, Sonos Sub 3
Bedroom setup: Samsung 55” Q70T, Sonos Arc, 2x Sonos One, Sonos Sub 3

Bedroom has the eARC dropping issue which is exhibited by the sound coming and going from the Sonos devices during which time changing the volume displays the TV speaker volume changing rather than the ARC.

But the living room is functioning perfectly, configured identically with only the TV slightly different. Thinking the issue was the bedroom TV, I exchanged it for another of the same. 

The solution in the bedroom is unplugging all HDMI cables, and plugging them back in starting with the Arc.

It THINK this is the same issue being discussed here, but I wonder.

Are all SONOS arc users having this issue of the sound cutting out or is it a subset of users having this issue?

I have a Samsung 8K TV with Arc connection. Experiencing the same issue with sound cutting out when the TV is first turned on. Unplugging  works  temporarily  but problem does come back the next time the TV is turned on after it has been turned off for a while. Diagnostic  # is 392179145

Recently purchased the arc and sub to replace a Sony system… awesome when it works, but having the same issue 😔. On the 2020 Samsung Frame 65” with SONOS Arc and Sub. Hope there is an update soon.

Hi there,

I recently purchased the Arc and Sub (Sofware Version 12.0.5) to go with my 2020 Samsung Frame 65” (TV Software Version: T-NKMAKUC-1301.5). Connected by eARC HDMI.
I read most of this thread and am experiencing the same issue of intermittent sound cutting in and out for about one second on, one second off. 

Unplugging and pluggin back in does resolve for at least the current sitting, but starts back up again eventually. 

What other numbers can I give you to help? I’m not sure where to find the diagnostic number. Thanks for your dedication to solving this!

I had experienced the issue with my 2020 Samsung QLED 55" 90T TV connected to a Virgin V6 box, as previous post Sonos helpline advice was to keep unplugging TV to reset until Sonos could resolve and send in diagnostics if frequency became an issue.

Current update is I've had a week of no issues but don't know why, as I have not changed anything physically such as cables etc.

However I have changed between various sources available, from streaming music from iPad, streaming sonos radio from android mobile, physically connecting my laptop to TV, watching Samsung internet TV and channels from my Virgin V6 box.

Will post again if issue returns.

Add me to the list. Samsung Frame 65. Arc cuts out every second or so if the TV has been off for a while. Unplugging and plugging the power back into the Arc resolves the issue until the next time the TV sits off for a while.

Wholly unacceptable for a full home theater setup (Arc, Sub, One SL (Pair) surrounds). Bought as a package directly from Sonos.

Already perturbed about having to upgrade some of my older devices since they didn’t support the new Sonos app. Used that upgrade discount to get the Sonos home theater package - and it doesn’t even work right - due to this audio dropping bug that seems to be very wide spread.

Add the brand new Sony Bravia 950h (75” version) to the list of TV’s experiencing the audio cut-out with the ARC.  TV is wall mounted. eArc is enabled. The sound works until suddenly it doesn’t.  I’ve gone as long as 2 movies without it cutting out to cutting out several times in 30 minutes.  My current solution is to open TV settings, attempt to set external audio to the TV Speakers and then immediately roll back to the external audio….sound comes on immediately (feels like the ARC went to sleep but I don’t know).  This thread is already huge and I haven’t seen much from Sonos on this in here.  What is the status of this issue?  Can Sonos at least confirm it is an ARC issue and not the TV’s.  I think I can deduce that given how many different TV’s are experiencing this issue.

Also worth noting, I’ve replaced the HDMI cable which didn’t fix this problem.  I’ve also played around with the audio settings on the TV, specifically going to PCM output but this disables the TV’s ability to pass Dolby ATMOS through which is completely unacceptable.  I should still be in the window where I can return the ARC and then wait for a solution.  That seems to be my next step but knowing a hot-fix is in the works would be a welcome indication.  Sonos?

Hi @timhenn, welcome to the community.

Currently, there’s no new information that can be shared at this moment.

The engineers are working with the affected TV manufacturers to address the issue.

Once new information can be shared or available. We will let everyone know.

If you have other concerns, feel free to reach out.