Skip to main content
Answered

Reconnecting my Sub

  • November 25, 2025
  • 21 replies
  • 185 views

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….

Best answer by AjTrek1

@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

 

21 replies

Forum|alt.badge.img+19
  • 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. 


Forum|alt.badge.img+19
  • Senior Virtuoso
  • November 25, 2025

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


  • Author
  • 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. 


Forum|alt.badge.img+19
  • 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?


  • Author
  • 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. 


Forum|alt.badge.img+19
  • 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. 


Stanley_4
  • Lead 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.


  • Author
  • 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 


Forum|alt.badge.img+19
  • 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? 


  • Author
  • Contributor I
  • November 26, 2025

Yes the support guy tried with me for over an hour and he gave up and told me that I should buy a new Sonos Arc Ultra I knew he was going to say that $$$


Forum|alt.badge.img+19
  • Senior Virtuoso
  • November 26, 2025

Since you’ve “tried everything over and over again” I still hesitate to suggest things. What changed when you did a factory reset of the Sub Mini? 


buzz
  • November 27, 2025

What other SONOS products are installed?


AjTrek1
  • November 27, 2025

Why is your entire system wired to Ethernet?

Why do you have a Sonos Boost?

Do you use a switch to route all of your Ethernet Back to your router?

Do you have more than one router in your network?

To what speaker or speakers was the sub connected to?

 


  • Author
  • Contributor I
  • November 27, 2025

Yes all my Sonos speakers are connected to Ethernet cable and they are all connected to switch except the Sonos Boost. I have 2 routers the ATT and my Linksys 6E. and they are all connecting to the same WIFI and I have like this for more than 10 years or more since I bought the Sonos system. The Sonos Sub I guess to my Sonos Sound Bar.. 


AjTrek1
  • Answer
  • 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

 


Stanley_4
  • Lead Maestro
  • November 27, 2025

If the Boost isn't connected to Ethernet what is the purpose of having it?

 


  • Author
  • Contributor I
  • November 27, 2025

It is connected to to Ethernet cable and into my Router. I had it in the beginning when the issues started that’s why I connected everything through ethernet because I figured probably it was the Wi-Fi but it’s not.


buzz
  • November 28, 2025

We cannot rule out a hardware issue with SUB. Perhaps there is a mechanical issue, such as a floating object introduced by a kid or rodent. When you moved the SUB the object may have settled in a disruptive location.

As a next step, I recommend Factory Reset of ARC, SUB, and any Surrounds. Wait until all of the units have been reset, then as you power up the units take care to add them to your system, don't accidentally setup a new system. Add ARC first.

If this doesn't resolve the issue, another call to support might be more productive. 


  • Author
  • Contributor I
  • November 28, 2025

I did the factory reset so many times. The Sub was always exactly on that spot the only speakers the I moved was my Play 5 speakers now on opposite sides of my TVs. The support team I tried and we were back and forth doing different things and at the end he gave up and I knew his advice was to buy a New Sonos system and I told him that if Sonos had sent out a new update at least every 3-6 months I’m sure this wouldn’t be happening these are very expensive systems but Sonos didn’t care for there customers after more than 10 years they finally sent out a new app or update but that app is not for my Sonos system. Because of that I will never buy another Sonos system ever again or anything that has the Sonos brand. I appreciate your help and support but I give up on Sonos completely. I will hopefully buy the Nakamichi Dragon Dual 12” Subs System or the Quad 12” Subs system when I get my taxes refund in February of 2026. Again Thank You for your support 


106rallye
Forum|alt.badge.img+18
  • November 29, 2025

Good luck!