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sub 4 not connecting with arc ultra

  • December 31, 2024
  • 3 replies
  • 281 views

I have new units, arc connection works, but can get sub 4 to even be found 

I have rebooted both units and still sub 4 will not connect.

solid orange light 

any suggestions?

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3 replies

Airgetlam
  • December 31, 2024

I’d try, at least temporarily, connecting both Arc Ultra and the Sub gen 4 to your router with an Ethernet cable. That should reduce potential of communication errors.

Remember, the TV connects to the Arc via ARC, and the Sub connects to the Arc via a 5Ghz hidden channel, normally, which is one reason why you should never turn off the radio/wifi on a Sonos soundbar. 


Airgetlam
  • December 31, 2024

And yes, I’m not a huge fan of naming a device the Arc, when it connects via ARC, and is also not physically an arc. 


  • Author
  • Contributor I
  • January 1, 2025

Thanks for your reply!

it is now working!