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Hi All,

I have seen many posts in here about issues with Samsung TVs and Sonos ARC in the area of eARC, Anynet+ (HDMI-CEC) and Dolby Atmos. Especially the TVs that have a “One Connect Box” like The Frame or the High End ones like my brand new Samsung S95C 77 Inch. Who would have thought, that after operating a 8 Year old Samsung UE65KS9080 9-Series 65” Curved TV flawlessly with the Sonos ARC for years, that I would run into such issues with the new high end Model from Samsung which literally costs thousands of Dollars. It also seems nobody has really found a long lasting fix for the issue or figured the root cause. I am baffled about Sonos and Samsung not being able to fix the issues documented all over in this community and leaving customers frustrated and lost.

So what is the issue I personally see:
 

  • After successfully configuring the TV with ARC, Apple TV, Playstation, the TV drops connection to the Sonos ARC and starts switching between internal Audio and ARC Audio, some times after hours, some times after a day or after standby
    • This can happen in the middle of a movie, streamed from Disney+ APP on the TV itself
    • It also often loses connection right when starting up the TV the first time of the day, or it is flipping between internal and Sonos ARC Sound in 3 sec rythm..
    • Sometimes it suddenly works again after 10minutes of waiting….

So what did I try/do:

  • reconfigured the TV several times with the procedures suggested by others in this community, no persistent solution 
  • Disabled eARC
  • replaced all HDMI Cables with high end HDMI 2.1 cables, yes the ones that worked flawlessly with my old Samsung TV …. and the new ones are also just 0.5m long…
  • switched the OnConnect Cables from the short one to the longer one on the TV
  • Factory reseted Apple TVs, Sonos ARC and TV….
  • Everything is updated to the latest Firmware Release available

Now, what should I do with my expensive few week old TV or with the expensive Home Cinema Sound System (ARC, SUB and two ONE SLs). I could either throw away Sonos and try a Samsung Home Cinema Sound System like Q990D or try to get rid of the huge and heavy 77” TV and get a new one from LG, but who guarantees that this one will work flawlessly? Frustrating times that did cost me hours of research in forums and debugging attempts….

Any Idea? Any persistent fix around the corner?

Cheers

(Your own Samsung might have options in different places but on my Samsung:)

Settings / General / External Device Manager / Anynet+ (HDMI-CEC): On

General / Input Signal Plus: On for all HDMI ports

Under Settings / Sound / Sound Output: Receiver (HDMI-eARC)

Sound / Expert Settings / HDMI e-ARC mode: Auto.

Digital Output Audio Format: Pass-through (so external devices like Apple TV’s sound works properly)

Dolby Atmos Compatibilty: On

Also check for TV software updates (I’m on 2505, might not apply to yours…?)

 

 

 

 

(Your own Samsung might have options in different places but on my Samsung:)

Settings / General / External Device Manager / Anynet+ (HDMI-CEC): On

General / Input Signal Plus: On for all HDMI ports

Under Settings / Sound / Sound Output: Receiver (HDMI-eARC)?

Sound / Expert Settings, HDMI e-ARC mode: Auto.

Digital Output Audio Format: Pass-through (so external devices like Apple TV’s sound works properly)

Dolby Atmos Compatibilty: On

 

 

 

 

Yeah, I tried al these options. Actually most people suggest to disable eARC. I tried both, no real difference, same issues. Pass-through sometimes is greyed out and set to auto, depending on the source. For example, if the source is an APP on the TV itself. You only need path through if it is an external source like Apple TV, etc.

Okay, thought I’d post anyway. You never know. 
(I still get the one second drop-out every 30 mins on Dolby Atmos content from Apple TV through my Samsung into the Arc. This has been an Apple/Samsung/Sonos issue for a long time with no resolution…)

My TV just announced the July Update. Maybe it fixes some issues, will test it tonight. I am in EU.
 

Update version 1430.3   July 2024  

  • Wifi speaker surround Set up - Menu Deletion - Termination of Surround and Stereo functions using Room Speakers  

  • Support for Q-Symphony functions using Music Frame  

  • Improved Audio Interruption issue when using connected Soundbar  

  • Improved the issue of Black Screen when turning on the TV with an External Device

That sounds promising…  I had edited my post to you yesterday with a suggestion to check for any updates, so maybe Samsung heard me…!  ;)

Sadly, no improvement. I did again factory reset the Sonos ARC and the TV. Still the same issues.

Sonos Arc is on Release 16.3.1 (build 80.1-55240)
TV is on 1430.3

I will try now Samsung Support, if no luck, I will return the TV.

Quick Note, the latest Software Updates on both products didn't solve the issue. I did again a factory reset of both Systems. Now I am in contact with Samsung Second Level Support. So far they confirmed having occasionally people calling with issues with Sonos and Bose Soundbars. I am now waiting for a callback and remote support session. More later.

Ok, last update and fix. Samsung support looked at the system via remote access and found that it was not behaving as it should. It was sent to the repair centre and the mainboard in the one-connect-box was replaced. Now it works like a charm with my SONOS ARC. Case closed 😀

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