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arepo
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.
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arepoAuthor
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 $$$

nik9669a
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
buzz
Grand Maestro
November 27, 2025

What other SONOS products are installed?

AjTrek1
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?

 

Together Everyone Achieves More = T.E.A.M.
arepoAuthor
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
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.
    Stanley_4
    Stanley_4
    Grand Maestro
    November 27, 2025

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

     

    arepoAuthor
    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
    buzz
    Grand Maestro
    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. 

    arepoAuthor
    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 

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