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DMBMBA
Contributor I
Dec 23, 2025 12:30 PM UTC

Arc Ultra Surround

My arc ultra is connected to my Samsung TV by ehdmi and works fine. I can set up my Era300s (2) as stand alone speakers but when I set them up as surround with my arc ultra it shows connection issues with the eras. Any advice would be greatly appreciated. 

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7 replies

jgatie
jgatie
Dec 23, 2025 1:50 PM UTC

Is the Arc connected via Ethernet?  If so, the WiFi still needs to be turned on for the Arc, because the surrounds connection still requires WiFi.

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    DMBMBAAuthor
    Contributor I
    Dec 23, 2025 10:43 PM UTC

    Thank you, the Arc is connected to WiFi 

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    MoPac
    MoPac
    Headliner III
    Dec 23, 2025 11:11 PM UTC

    Are you separating the 300 stereo pair prior to setting them up as surrounds?

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      DMBMBAAuthor
      Contributor I
      Dec 26, 2025 12:53 PM UTC

      Yes, it’s only when I set them up as surround with the Arc. 

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      Stanley_4
      Stanley_4
      Grand Maestro
      Dec 26, 2025 3:46 PM UTC

      What does the network connection look like in the app's Settings? 

       

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      DMBMBAAuthor
      Contributor I
      Dec 31, 2025 8:10 PM UTC
      Everything seems good there. 

       

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      Stanley_4
      Stanley_4
      Grand Maestro
      Dec 31, 2025 8:20 PM UTC

      That looks better than most of my Sonos, you may have an interference issue with the private/hidden Sonos 5 gHz surround/sub network.

      About all you can do is try and find what is causing the problem or wait for the issue and submit a diagnostic and call Sonos to have it looked at.

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