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Avid Contributor II
July 14, 2026
Answered

Arc sound stopped on LG G4

Hi All,

Yesterday my sound stopped working from the Arc.  After following a few suggestions of toggling things off and on, restarting tv and arc (fixed it for about a minute then dropped again), I had to reset it.  Only then it appears to be back on although haven’t had it on for longer than 15 mins today to see if its a fix.  

Been working fine for over 2 years.

Why would it do this?  Is it likely developing and problem or could it simply be a one off handshake issue?

Strangely, when I tried to run the SONOS radio instead of TV, the sound came through the rear surrounds.

AjTrek1
AjTrek1Answer
July 14, 2026

Factory resets are typically a last resort and only recommend in extreme circumstances at the behest of Sonos Tech Support. If there was an issue with your Arc the Factory Reset erased any information that would have been useful in a diagnostic to Sonos Tech Support. If the issue returns run a diagnostic, make note of the reference ID (don’t post it in the community) and call Sonos Tech Support.

Your issue could have been a handshake issue. Sometimes a hard reboot sequence may resolve the issue:

  1. Pulling the power cord while TV is on
  2. Hard reboot of Arc
  3. Giving the TV power again
  4. Powering up the Arc

Music playing through the rear speakers in a Sonos HT setup is normal (ambient or full stereo *). Unless you’re saying no sound was heard from the Arc. Was that the case? If so you need to run the diagnostic and call Sonos Tech Support as the Factory Reset did not fully resolve the issue.

 * Music volume such as Ambient (soft) or Full Stereo can be set in the App.

Together Everyone Achieves More = T.E.A.M.

42 replies

MoPac
Headliner III
July 16, 2026

Something else:

 

AjTrek1
July 17, 2026

I addition to ​@MoPac advice….if available consider WPA2/WP3 Personal Encryption. I use that with my ASUS WiFi 7 AiMesh network. Learn more about the advantages of using such encryption here.

 

Together Everyone Achieves More = T.E.A.M.
Senior Virtuoso
July 17, 2026

I see you have a Play 5 (Gen 1).  So you are on the older S1 app….Correct?  Which Sonos device(s) are on Ethernet?

No I don't have that now. I'm on latest app with arc, sub, 2 play1, a play3 and an ikea speaker. An update was done while onto sonos support. 

Arc is on ethernet and now one of the 1s is.

It's not disconnected again yet since connecting the 1.

What I don't understand is why this has suddenly happened, needing the 1 to be connected.

Dont really want cables in view. 
 

 

Environments change. A new piece of electronic equipment in your or your neighbours’ homes can make a difference. Or a neighbour updates their router/wifi and it interferes with yours. 
 

If the above suggestions don’t help and you go back onto SonosNet, have you tried a different channel?

bonerp1Author
Avid Contributor II
July 17, 2026

I see you have a Play 5 (Gen 1).  So you are on the older S1 app….Correct?  Which Sonos device(s) are on Ethernet?

No I don't have that now. I'm on latest app with arc, sub, 2 play1, a play3 and an ikea speaker. An update was done while onto sonos support. 

Arc is on ethernet and now one of the 1s is.

It's not disconnected again yet since connecting the 1.

What I don't understand is why this has suddenly happened, needing the 1 to be connected.

Dont really want cables in view. 
 

 

Environments change. A new piece of electronic equipment in your or your neighbours’ homes can make a difference. Or a neighbour updates their router/wifi and it interferes with yours. 
 

If the above suggestions don’t help and you go back onto SonosNet, have you tried a different channel?

 

Yes tried all 3 options. It's currently off and trying with only WiFi. On wpa2. 

 

bonerp1Author
Avid Contributor II
July 17, 2026

I now keep losing wifi connection with my sonos ikea bookshelf speaker upstairs. 

I thought I disconnected from sonosnet but went to reenable it just now but already on.

Weird. 

I've disconnected sonosnet again. See what happens next.

 

UPDATE no it's gone again. I'm losing the speaker in the list of devices available. Having to restart the same as arc.

 

What next?

Thanks for your suggestions. 

106rallye
July 17, 2026

This happened to me when trying the new UI - not sure it is really related though. Did you try it?

bonerp1Author
Avid Contributor II
July 17, 2026

This happened to me when trying the new UI - not sure it is really related though. Did you try it?

Yes gone back to the old one earlier today to try to isolate the issue. 

JRSmith42
Lyricist III
July 17, 2026

Geeze guys 😂! I guess I’m just too old for this. Really… pulling power is interpreted as “yanking” on the power cord itself. Glad I didn’t say “cut” the power. Lord knows what would have happened then. 😵‍💫

Also, the OP said they Reset the Arc. As “toggling the TV and Arc on/off didn’t work. Since there’s no switch on the Arc to toggle I didn’t get into semantics as to what the OP meant. Reset in my Sonos speak refers to a Factory Reset.

As long as I can remember a Hard Reboot meant removing power to a device while it is still powered on. Which is the same in Sonos-speak (as well with a TV) which is not a factory reset. Hard reboots merely clear a cache and/or memory but does not take the device back to a virgin state as would a factory reset.

Just to put a point on things … I’m pass Three Score and Ten. Which probably qualifies me as grandpa (at least) to most in the community. Old school to the max 😂😂😂

Gotcha beat. Four Score and Four here. 😎

JackRabbit
Stanley_4
Grand Maestro
July 17, 2026

Mom still uses her Sonos, five score and a couple more.

JRSmith42
Lyricist III
July 17, 2026

Mom still uses her Sonos, five score and a couple more.

All I can say to that is Wow!

JackRabbit