Hi everyone,I’m hoping someone here can help me troubleshoot an issue with my Sonos Beam. Overnight, it stopped working properly with my LG Web OS TV.Here’s what’s happening:The Beam is connected via HDMI eARC, but it no longer auto-plays sound when the TV is on (even though auto-play is enabled in the Sonos app). I can only get sound if I manually select the TV as the source in the app. Our universal remote, which worked perfectly yesterday, can no longer control the Beam’s volume. I’ve tried reconnecting several IR remotes in the app, but none of them work.What I’ve tried so far:Resetting the TV and the Beam. Turning both devices off, unplugging them, and disconnecting all cables. Ensuring Simplink (CEC) is activated on the TV. Testing the HDMI eARC cable and another speaker with this TV — they worked fine. Testing the HDMI eARC cable with another TV and speaker — no issues there either.The TV recognizes the Beam on HDMI port 2, but when I test the connection in the Sonos app, it says "connection failed."The only thing I haven’t tried is replacing the HDMI eARC cable, though it seems unlikely to be the issue given that the cable works with other setups. I’ve ordered another cable just incase. Any advice or suggestions on how to fix this would be greatly appreciated. I’m completely out of ideas!Thanks in advance for your help!

Contributor I

Answered

Sonos Beam Stopped Working with LG TV (HDMI eARC and Remote Issues)

12 replies
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Hi everyone,

I’m hoping someone here can help me troubleshoot an issue with my Sonos Beam. Overnight, it stopped working properly with my LG Web OS TV.

Here’s what’s happening:

The Beam is connected via HDMI eARC, but it no longer auto-plays sound when the TV is on (even though auto-play is enabled in the Sonos app). I can only get sound if I manually select the TV as the source in the app.
Our universal remote, which worked perfectly yesterday, can no longer control the Beam’s volume. I’ve tried reconnecting several IR remotes in the app, but none of them work.

What I’ve tried so far:

Resetting the TV and the Beam.
Turning both devices off, unplugging them, and disconnecting all cables.
Ensuring Simplink (CEC) is activated on the TV.
Testing the HDMI eARC cable and another speaker with this TV — they worked fine.
Testing the HDMI eARC cable with another TV and speaker — no issues there either.

The TV recognizes the Beam on HDMI port 2, but when I test the connection in the Sonos app, it says "connection failed."

The only thing I haven’t tried is replacing the HDMI eARC cable, though it seems unlikely to be the issue given that the cable works with other setups. I’ve ordered another cable just incase.

Any advice or suggestions on how to fix this would be greatly appreciated. I’m completely out of ideas!

Thanks in advance for your help!

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M

mpedgjwAnswer

Contributor I

@Sotiris C. @aCruz1

I've managed to fix it (although still waiting for a response from LG).

I started quizzing ChatGPT what else I could do and it recommended completely unplugging the TV and Beam power and leaving it unplugged for at least 30 minutes - as it may reset the HDMI ports.

I also turned Simpli-link off before turning the power off (then turned it back on when I powered it up).

I've just plugged it back in, and low and behold, it's started working straight away.

No idea why that's had an effect but definitely worth a try on you end. I'm hoping it stays working now and hoping that this will resolve the problem in the future.

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J

jxSouth27

Lyricist I

Power button on the remote.

Airgetlam

Yep, that doesn’t reset the TV in any way. It merely puts it to sleep, waiting for the next command from the remote. The Sonos would, after a short period of inactivity, switch into low power mode, waiting to get new data coming across the connection.

Bruce

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