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Changed wifi, now can’t connect SL One to new network without ethernet

  • November 14, 2025
  • 8 replies
  • 75 views

I recently changed my Wi-Fi router and updated my system with the new configuration. However both SL Ones disappeared and after factory resetting both, they still would not connect. I attached one speaker to the router with an Ethernet and was able to set them up and added them as surrounds for the Beam. However on removing the Ethernet the connection goes and they get dropped from the set up. Any idea why and how to get them all wireless again?

Best answer by Corry P

Hi ​@Anto73 

Welcome to the Sonos Community!

Sorry to hear of this issue you were having with connecting your speakers to your new router.

Looking at your system now, I can see that your Beam has two surrounds configured, so it seems you have resolved the problem.

I can see another speaker still offline, however - if you are still having any issues, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.

8 replies

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  • Senior Virtuoso
  • November 14, 2025

Have you reset the wifi details on the speaker after connecting it via Ethernet? The factory reset wipes all data; then you need to give it your new wifi details. 
 

https://support.sonos.com/en-us/article/connect-sonos-to-a-new-router-or-wi-fi-network

 


Stanley_4
  • Lead Maestro
  • November 14, 2025

They should retitle that factory reset page to:

How to make things more difficult for you and Sonos support.

https://support.sonos.com/en-us/article/reset-your-sonos-product

The warning there doesn't seem to catch the reader's attention.

Resetting all products within your system will permanently delete your system’s data. It cannot be restored.

We do not recommend resetting your Sonos product as a troubleshooting step

 

There are times it is the recommended option but these are clearly indicated in the support files.


Forum|alt.badge.img+19
  • Senior Virtuoso
  • November 14, 2025

They should retitle that factory reset page to:

How to make things more difficult for you and Sonos support.

https://support.sonos.com/en-us/article/reset-your-sonos-product

The warning there doesn't seem to catch the reader's attention.

Resetting all products within your system will permanently delete your system’s data. It cannot be restored.

We do not recommend resetting your Sonos product as a troubleshooting step

 

There are times it is the recommended option but these are clearly indicated in the support files.


To be fair, I think a factory reset is needed to be able to re-set the wifi details for a One gen1 and several other older devices. 


Stanley_4
  • Lead Maestro
  • November 14, 2025

I didn't see the One SL on the list here.

https://support.sonos.com/en-us/article/connect-sonos-to-a-new-router-or-wi-fi-network

Unsupported products

Currently, the Sonos app can update WiFi settings on Sonos products that are capable of using Bluetooth Low Energy (BLE). Some Sonos products don’t have BLE capabilities, so the Sonos app will not be able to discover them in order to update their WiFi network information. These products are:

 

Connect (Gen 2)

Connect:Amp (Gen 2)

One (Gen 1)

Play:1

Play:3

Play:5 (Gen 2)

Playbar

Playbase

Sub (Gen 1)

Sub (Gen 2)

SYMFONISK Bookshelf (Gen 1)

SYMFONISK Table lamp (Gen 1)

If you have any of these products in your Sonos system, first go through the above process of updating WiFi information for any supported products. Once your supported products are updated, factory reset any products that could not be discovered, then add them back to your Sonos system.


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  • Senior Virtuoso
  • November 14, 2025

My post said the One gen 1 needs a factory reset; I never mentioned an SL. The op doesn’t say whether their One is Gen 1 or Gen 2. 


Stanley_4
  • Lead Maestro
  • November 15, 2025

They mention it being the One SL in the title:

"Changed wifi, now can’t connect SL One to new network without ethernet"

and in the post:

"However both SL Ones disappeared"

My understanding of the One SL is that it is based on the One (Gen 2) and not the One (gen 1) that needs the factory reset.

https://en.wikipedia.org/wiki/Sonos_One

Sonos One SL

In addition to the Gen 2, Sonos released the One SL in September 2019. Based on the outside design and its functionality the SL version is the same as the Gen 2 but without microphones

 

If the mention of the One SL, in addition to the One (Gen 1) in the linked "Factory Reset Needed" support topic needs to be added hopefully a moderator will pick this up.


Corry P
Forum|alt.badge.img+19
  • Sonos Staff
  • Answer
  • November 18, 2025

Hi ​@Anto73 

Welcome to the Sonos Community!

Sorry to hear of this issue you were having with connecting your speakers to your new router.

Looking at your system now, I can see that your Beam has two surrounds configured, so it seems you have resolved the problem.

I can see another speaker still offline, however - if you are still having any issues, I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.

I hope this helps.


  • Author
  • Contributor I
  • November 21, 2025

Thanks everyone for your thoughts and advice, I’ll certainly contact tech support to get this fully resolved.