Arc keeps disconnecting from Samsung TV

Same problem. Keeps disconnecting. HDMI sound option not showing on my Samsung Q9.

I open the Sonos app and find the «TV» option in the app. When I adjust the volume with slider in app, the Sonos activates for like 5 seconds and switches back to TV sound.

Exact same issue with exact same setup. E-arc fails and I have to physically disconnect power from both the TV and the Arc to get them to pair up again. Power cycling just the Arc does nothing so it might be my Q80T that is the issue. The nvidia CEC drops out all the time too.

Same issue with my setup: 

Sonos Arc connected to HDfury and Apple TV 4K. I am using very high quality firber optic HDMI cables. 

I did not have any issued before upgrading to the latest Apple TV 4k. Since upgrading Sonos Arc keeps dropping off the HDMI connection. So , every time I want to turn on the system, I see on the HDFury LCD that there is no active HDMI on eARC even though ARC is connected and on. I have to unplug the HDMI cable from HDFury and reconnect and it will detect ARC. 
Also I have constant issues with Apple TV volume control which also started after upgrading to the latest Apple TV 4k. 

Help please :(((

Same random problem with a Sonos Arc + Samsung Q95T TV.

Same issue with HDFury, Samsung TV, ATV, Fios Verizon cable. Fios remote occasion drops connection to Sonos when turning on TV so sound comes from TV, not Sonos. Need to reboot Fury, or power reset Sonos. Any suggestions?

Thanks

Bought my arc, sub, and two Era 100s for a surround experience with my old Samsung TV a couple of months ago. Set up was seamless, as has been all of my other Sonos products. My old (2016) Samsung TV connected to the arc with HDMI eARC without a problem. This week I purchased a new Samsung Neo QLED QN90C TV, and I have experienced all of the headaches that other Sonos owners have mentioned on this and other forums.

The TV recognizes that ‘something’ is in the HDMI eARC port, but doesn’t identify it as the Sonos arc, and so doesn’t list it as a useable sound option. The Sonos arc keeps telling me to try connecting to the eARC with an HDMI cable (which I am, and have used different cables to be sure it isn’t a cable issue). 

If I go to the ‘Expert’ settings on the TV sound menu, and turn off the auto eARC, then turn it back on, IF my Sonos App on my phone is open and set to TV, I can use the phone to control the volume of the Sonos speakers and experience full surround sound. If the Sonos app isn’t open on the phone at the TV setting as that switch is made then it doesn’t work, and if I accidentally use the TV remote volume control then sound reverts to the TV and the Sonos surround no longer is active.

I have also tried all the different ways of unplugging cables, turning off the TV and arc, turning them on sequentially, but that is a once per use solution, not a permanent fix yet (at least not for me). 

So, I can work around this problem, but in a very frustrating way given that the Sonos speakers are new, the TV is new, and they both should be able to ‘talk’ to one another through the HDMI eARC port.

Has anybody on these forums, or has anyone at Sonos (or Samsung for that matter) found a lasting solution to the set-up and connection problem between these products?

Thanks.

I can add to my last message to say I just tried a new HDMI 2.1 cable...it made no difference...I can still only use my phone app to control tv volume. 

I tried to add a CEC blocker to the Direct TV input HDMI cable, and no sound worked, period.

I used the Sonos optical adapter on an HDMI cable. The TV recognized the optical input and when I turned the tv and Direct TV boxes on using the Direct TV remote the sound came on through my Sonos surrounds; however, I still had to use my Sonos phone app to control the speaker volume...the Direct TV remote and the Samsung TV remote did not work to change volume. Using the optical input also disabled Dolby Atmos, which is one of the features I love about my Sonos speakers. 

I’m increasingly frustrated. I’m not seeing any info from Sonos online about how to fix this but will try contacting Customer Support. Failing that, Samsung Customer Support, but I have a feeling Samsung could care less about this than Sonos should, since there are other surround sound speaker systems available. Ugh! 

I have this issue as well. Sonos needs to fix this. I have been dealing with it for over two years and about to ditch the arc even though i have enjoyed the quality of sounds when it works.