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Greetings,

I have the Sonos Playbar Model 48, OS: S2, Version 17.0 (build) 85.0-64200) Hardware version 1.9.1.10-2.2

It’s connected to my TCL C745 4K QLED TV (Android TV OS Version 12, security patch 5 May 2024 (I probs need to update that) Kernal 5.4.233+

I have the Optical out connected from the TV to the Playbar (as it does not have HDMI).

I also have an Amazon Fire TV Stick - Fire OS 8.1.3.7 (RS8137/2904) Fire TV Home Version 7201001.1 connected to the TV via HDMI and connected via a Network cable into the official Amazon Fire TV adaptor.

Ok, that’s all the numbers out of the way.

So, I use the Fire TV for everything, When I pause Netflix or Prime for any longer than about 5 minutes, when I come back to resume (press play on the Fire TV remote again). The volume is gone. I have to press the volume up button a few times before it comes back.

I have gone through all three devices and ensured any sleep timers are off.
My TV has its default output set to Optical.
My Fire TV has its Sound and Volume control set to the Playbar.
I have Power Control to the Playbar CEC disabled in Fire TV equipment control (with the plan to leave the speaker to always on, to prevent the volume going to 0 on power).

This used to work without issue, not sure what’s changed that would start causing this.

Any ideas?

Thank you

V

Have you tried powering off all elements of the system - tv, Fire tv, Playbar etc for a few minutes? Then restart them all and see if that clears any glitch. 

Sure have. No luck :(

In that case I’d be inclined to generate a diagnostics report a few minutes after it next happens, and then contact Sonos support. They may be able to tell what’s happening from the diagnostics. 

My guess is that it has to do with the TV not properly energizing the optical output port. In addition to ​@nik9669a ‘s suggestions, I’d double check that the firmware on the TV is up to date. Sonos won’t play what it isn’t being handed. 

Have you checked your optical cable? You don't have the volume through Optical? Some TV a view that have options to mute if they don't have any signal from another source that isn't from the TV (its own OS) check that in your TV.

Does this also happen when you use apps on the TV itself?

Does this also happen when you use apps on the TV itself?

Not sure. But a good idea to test to help narrow down on the culprit

Thank you all, Seems ok now.

What I ended up doing was pairing another junk remote to the Sonos. (There was no option to remove)
Then confirmed the audio was set to soundbar on the Fire TV and now it seems ok. Additionally I turned off all the ‘green’ optimization permissions for any apps on the TV itself. So..something fixed it :)

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