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Contributor I
November 25, 2025
Answered

Reconnecting my Sub

Is there a way to connect my Sonos Sub back to my system it was before now I can’t. It keeps asking me to update it but it was working fine before I recently switched spot to a new portable TVs stand….

PLEASE HELP….

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AjTrek1
AjTrek1Answer
November 27, 2025

​@arepo 

It seems you may have conflicts with your network

You should remove all Ethernet connections, the switch and the Boost and go with your WiFi as the primary source to link you Sonos.

Also make sure that the ATT router side of the box is set to Bridge mode.

To accomplish the above you must: *

  1. Unplug all Sonos
  2. Remove the Ethernet cables, switch and Boost **
  3. Unplug your Linksys 6E
  4. Verify that the ATT router portion of the box is set to Bridge mode (you may have to contact your ISP)
  5. Connect your Linksys 6E to the ATT modem via Ethernet and plug it in
  6. If necessary be sure to use the same SSID and Password as before to setup the Linksys 6E
  7. Connect you device and verify that you have Wi-Fi and Internet connection
  8. Delete the Sonos app from your device
  9. Plug-in your Sonos (not the sub) and let them all come back
  10. Re-install the Sonos App
  11. Select “Join and Existing System”
  12. Follow and accept all prompts
  13. Sign-in with your credentials
  14. After all Sonos is back on-line Factory Reset the Sub
  15. In the App select Add a Product to get the sub back into your system
  16. Add the sub to the Arc

 * If you don’t feel comfortable doing the following call Sonos Tech Support to let them walk you through the process.

 ** You will no longer use/need any of these products

 

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

21 replies

Senior Virtuoso
November 25, 2025

arepo wrote

Is there a way to connect my Sonos Sub back to my system it was before now I can’t. It keeps asking me to update it
 

If it’s asking you to update it, do that. Then it should go back into your system. 

Senior Virtuoso
November 25, 2025

You’ll need to update all your devices (and app’s) to keep them in sync. 

arepoAuthor
Contributor I
November 25, 2025

I’ve tried to update it but it doesn’t work. It was working fine before all I did was move it to a different spot of my living room. 

Senior Virtuoso
November 25, 2025

I’ve tried to update it but it doesn’t work. It was working fine before all I did was move it to a different spot of my living room. 

 

Do you get an error message? 
 

Have you tried connecting it with Ethernet cable to update? 
 

Is the rest of your system updated?

 

Have you tried powering it off, waiting a few minutes, and then restarting it?

arepoAuthor
Contributor I
November 25, 2025

I tried everything, my whole system is Ethernet cable connected. It picks up my soundbar and my 2 Sonos play 5 but not the Sub and the Booster. I still have my soundbar a Sonos play 5 working great. 

Senior Virtuoso
November 25, 2025

I tried everything, my whole system is Ethernet cable connected. It picks up my soundbar and my 2 Sonos play 5 but not the Sub and the Booster. I still have my soundbar a Sonos play 5 working great. 

Whilst you’ve not answered all of my questions, you do say you’ve tried everything, so try speaking to Sonos support and see what they suggest. 

Airgetlam
November 25, 2025

 Note: in general use, the Surrounds and the Sub connect to the soundbar across a ‘hidden’ 5 GHz signal, and don’t normally go through the router. You may want to try turning on the ‘radio’ on both your Sub and soundbar ( and frankly, the surrounds) and try your update again. 

Bruce
Stanley_4
Grand Maestro
November 25, 2025

Booster? Do you mean a Sonos Boost?

With all your speakers wired it isn't doing anything useful. Even with only some wired it is likely redundant.

Power down all Sonos, reboot router and controller, give it a minute to wake up and then power on the Sub then the soundbar, nothing else, then try the update.

arepoAuthor
Contributor I
November 26, 2025

I’ve tried everything over and over again. Everything connects fast except for the subwoofer it keeps coming up as NOT REGISTERED meaning it’s not updated and I tried so many times it was working fine until I decided to buy a new Stand For my new Sony A95L I just moved it to a better position where everything is facing me. I even bought a new Boost and still. I’m about to give up and start saving for a Nakamichi Dragon 11.4.6 . I will never buy a Sonos system again 

Senior Virtuoso
November 26, 2025

I’ve tried everything over and over again. Everything connects fast except for the subwoofer it keeps coming up as NOT REGISTERED meaning it’s not updated and I tried so many times it was working fine until I decided to buy a new Stand For my new Sony A95L I just moved it to a better position where everything is facing me. I even bought a new Boost and still. I’m about to give up and start saving for a Nakamichi Dragon 11.4.6 . I will never buy a Sonos system again 



What did Sonos support say when you spoke to them?