Beam: Keeps switching back to ARC from Bluetooth - how to stop?

Same issue with the LG C9 and a Samsung QLED.

With the Samsung it's even worse since very often when switching source (from cable TV to PS4 to some TV app like Netflix) the sound is completely lost, and I either have to change output to TV speakers (which jumps back immediately to the beam gen 2 and sometimes fixes it), or completely turn off and on the TV and sometimes this also works.

Extremely random and very disappointing for such a premium product.

It's unacceptable that I have to play around with the output settings every time I switch source because the Sonos beam goes silent on certain sources randomly.

Because people have reported not experiencing the same issues with non-Sonos products, i.e. Bose soundbars.

I have the LG C9 OLED - all you need do there is switch off Simplink in the TV settings. I assume the same with Samsung, just switch off AnyNet+.

I believe these things are for the TV manufacturers to resolve as HDMI-CEC will stop the "output switching" once any ARC/eARC Receiver is connected. I don’t believe this is a Sonos issue.

So what?  People have reported it working fine with other brands of TV's too.  That tells us nothing.

What do you mean by “so what”? If other brands work fine with the same TV then clearly this product has a problem working with this TV. And since we're talking about a very wide range of problematic TVs (LG and Samsung being popular as they are) then this is clearly an issue that needs to be resolved. And the fact that other manufacturers have solved it shows that it CAN be solved by the soundbar manufacturer, or else none would function properly...

Will switching Simplink off prevent me from using the soundbar until simplink is re-enabled? If so then it isn't a solution, and this is what the other posters here describe, from what I manage to gather.

Yes, but this is something that the TV manufacturers need to resolve with the CEC protocol - the solution by the TV manufacturers at the moment is for you to use the TV optical port instead for the audio out, rather than the HDMI audio return channel.. If Sonos fixed this, you would likely see a solution that means toggling off/on CEC control by having to go into the Sonos App settings - so you may aswell just toggle off Simplink/AnyNet+ instead, as that option is easier and it already exists, so it’s best to leave things as they are, or get the TV manufacturers to sort this... easiest thing would be to toggle off CEC with a button press on the TV remote, perhaps?

Yeah I got this. Strange that it's been going on for so many years, and even stranger that some soundbars don't suffer from it. I wonder how other companies do it…

What bothers me much more is the loss of sound when switching source on my Samsung tv. My sister wants to remove the beam cause every time she wants to watch Netflix there's no sound unless she plays around with the settings and gets lucky...

Are you referring to Soundbars that do not use the HDMI-CEC protocol standard for controlling the volume using the TV’s native remote, whether that remote works over RF/Infrared/Bluetooth? Only I’ve not yet come across an audio receiver with those features that do not have this same issue.

I would rather use the native TV ‘remote’ for volume control rather than a separate ‘remote’ for controlling the Soundbar audio. It would be difficult to do that, If your ‘remote’ did not use infrared, without having CEC control enabled on the TV.

The CEC protocol, last time I reviewed it, allowed a single speaker ‘sink’ associated with it. This is why turning off CEC allows you to switch to different speakers.

For those not familiar, CEC is a common standard used across the industry. I don’t know, offhand, if Sonos was part of the consortium of companies that designed and agreed on the standard. Sonos just implements it as designed on their Home Theater devices.