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Question

My Sonos Arc Ultra, Sub and Rear Era 300s disconnecting fro TV (DAILY)

  • April 24, 2026
  • 8 replies
  • 42 views

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As mentioned pretty much every morning when I am up watching the TV(Samsung recent model) the sound drops out. A power on and off fixes it every time.

 

All connections are stable and firm but it keeps happening. I only upgraded from a similar setup with an old player, connected the same way that never had an issue.

 

The Arc is directly connected to the TV via HDMI, my old set up was optical.

 

I have done some research but no avail so would appreciate any help.

8 replies

Stanley_4
  • Grand Maestro
  • April 24, 2026

Try assigning DHCP reserved addresses to all Sonos. (See your router's settings. ) 

Power down all Sonos and reboot the router before powering the Sonos back up.


MoPac
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  • Headliner III
  • April 24, 2026

Which TV?  Is the HDMI port ARC or eARC?  Are you using the stock HDMI cable that came with the Ultra?  How long after turning on the TV does the sound drop out?  Did you go through TV Setup in the Sonos app?


Airgetlam
  • April 24, 2026

I’d be tempted to check the TV’s OS for updates, as well.


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  • Author
  • Avid Contributor I
  • April 24, 2026

Which TV?  Is the HDMI port ARC or eARC?  Are you using the stock HDMI cable that came with the Ultra?  How long after turning on the TV does the sound drop out?  Did you go through TV Setup in the Sonos app?

Tried all those


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  • Author
  • Avid Contributor I
  • April 24, 2026

Which TV?  Is the HDMI port ARC or eARC?  Are you using the stock HDMI cable that came with the Ultra?  How long after turning on the TV does the sound drop out?  Did you go through TV Setup in the Sonos app?

And yes earc


AjTrek1
  • April 24, 2026

Please re-read ​@MoPac’s question. You failed to answer the question about when does the audio drop.


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  • Author
  • Avid Contributor I
  • April 26, 2026

Which TV?  

 

Samsung

Is the HDMI port ARC or eARC?

eArc

Are you using the stock HDMI cable that came with the Ultra?  

Yes

How long after turning on the TV does the sound drop out?  

Within the hour

Did you go through TV Setup in the Sonos app?

Yes


buzz
  • April 26, 2026

What are other HDMI connections to the TV?