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Answered

sound goes off and i need to flip my sound source to get sound back

  • November 28, 2025
  • 4 replies
  • 36 views

I have Sonos arc + sub-mini + 2 ERA surrounds. Sonos arc is connected to LG TV UR8000AUA.

 

when I play you tube videos - sound suddenly turns off. I need to go into tv sound settings to change the sound source. It will automatically switch back to ears sound source and then sound will come back.


when I play Spotify music on tv the sound cuts off intermittently when the song plays.

i have tried changing various settings but the issue never gets addressed.

 

pls help

Best answer by Airgetlam

I’d also be tempted to reboot everything, the Sonos, and the TV, by unplugging both from the wall for two minutes, to assure a clean reload of each’s OS. 

4 replies

Stanley_4
  • Lead Maestro
  • November 28, 2025

Since you are playing audio from a TV app it may be a TV issue, the best place to start might be waiting for the issue, submitting a diagnostic and calling Sonos support to have them look at the internal logging data.

Checking that the TV and the apps on it are all updated and verifying your Sonos updates are current first could save a call.


Airgetlam
  • Answer
  • November 28, 2025

I’d also be tempted to reboot everything, the Sonos, and the TV, by unplugging both from the wall for two minutes, to assure a clean reload of each’s OS. 


Triticale
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  • Prominent Collaborator I
  • November 28, 2025

Apart from the advices coming from ​@Stanley_4 amd ​@Airgetlam, check if your Arc’s WiFi is switched off. I wired it and switch the WiFi off, and suffered similar symptoms with the rear speakers or Sub.

And also verify the rear speakers are bounded as surrounds, not just grouped in the same room. The behaviour you describes could be also compatible with the mentioned mistaken linking method. 


Stanley_4
  • Lead Maestro
  • November 29, 2025

That deceptive "disable Wi-Fi" label has caused so much grief over the years.

It needs to be made clear that while it does disable Wi-Fi it does it by turning off the radio, not just the Wi-Fi function.

That would be the radio essential for connecting to Sub and Surround speakers.