Skip to main content
bertietabac
Contributor II
January 24, 2026
Answered

I have issues connecting S1 devices with a Boost to my network

I have a Sonos Boost I'm trying to connect. That connects to the S1 app on my phone just fine. But when I try to connect the sound bar, the woofer and these two side speakers, it just does not connect. I'm hitting play and the plus sign. So it flashes all the speakers flash orange, but the S1 app on my phone does not recognize the system. The S1 app on my Mac also does not recognize other systems. My Boost is recognized just fine. I have no idea how to begin fixing this. 

Sonos Model Play 1 - 1606 5C AA FD C2 48 70 2

Sonos Model Sub - 1605 5C AA FD 84 CB 0C 2

Sonos Model Playbar  - 1606 5C AA FD A5 7F F6 9

This topic has been closed for further comments. You can use the search bar to find a similar topic, or create a new one by clicking Create Topic at the top of the page.
AjTrek1
AjTrek1Answer
January 26, 2026

It seems you may have two options to setup your network. Choose one based upon your network equipment and follow the steps in the order shown. 

There will be a factory reset of your Sonos products. However, since you have already performed a previous factory reset there is nothing to loose in the way of playlists or other data.  

The process will be time consuming; but no Boost is required. 

Option 1

  • Comcast provides the incoming net signal (no Comcast Modem or Router)
  • You have a Motorola B-12 modem
  • You have a 3-pack Erro 7 Pro

With this setup:

  1. Unplug all Sonos units 
  2. Factory reset the Erro 7 3-pack
  3. Select one of the Erro’s as the main node and connect it to the Motorola B-12 modem
  4. Connect your device to the temporary Wi-Fi signal generated by the Erro 7 (connected to the B-12)
  5. Configure The Erro 7 (connected to the B-12) with the same SSID for all 3-bands
  6. Setup the remaining 2 Erro 7’s to extend your network as a Mesh
  7. Factory Reset the Playbar and wait until the LED flashes green
  8. Download the Sonos App (S2) to your device 
  9. In the Sonos app select “Setup/Create a new system”
  10. The app should find the Playbar then follow the prompts to set it up
  11. Factory reset the Play:1’s (wait until the LED flashes green)
  12. In the app select “Add a Product” set up the Play:1’s as separate rooms
  13. In the room for with the Playbar select “Add surrounds” the app will find the Play:1’s and walk you through the process
  14. Factory reset the Sub and select “Add a product”
  15. In the room with the Playbar select “Add a Sub”

Option 2  (changes from Option1 are in Red)

  • Comcast provides the incoming net signal
  • You have a Comcast Router/Modem combo box
  • You do not need the Motorola B-12 Modem
  • You have a 3-pack Erro 7 Pro

With this setup:

  1. Unplug all Sonos units 
  2. Factory reset the Erro 7 3-pack
  3. Place the router side of the Comcast box into Bridge mode
  4. Select one of the Erro’s as the main node and connect it to the Comcast modem
  5. Connect your device to the temporary Wi-Fi signal generated by the Erro 7 (connected to the Comcast modem)
  6. Configure The Erro 7 (connected to Comcast modem) with the same SSID for all 3-bands
  7. Setup the remaining 2 Erro 7’s to extend your network as a Mesh
  8. Factory Reset the Playbar and wait until the LED flashes green
  9. Download the Sonos App (S2) to your device 
  10. In the Sonos app select “Setup/Create  a new system”
  11. The app should find the Playbar then follow the prompts to set it up
  12. Factory reset the Play:1’s (wait until the LED flashes green)
  13. In the app select “Add a Product” set up the Play:1’ s as separate rooms
  14. In the room for with the Playbar select “Add surrounds” the app will find the Play:1’s and walk you through the process
  15. Factory reset the Sub and select “Add a product”
  16. In the room with the Playbar select “Add a Sub”
Together Everyone Achieves More = T.E.A.M.
View in thread

24 replies

Show previous replies
bertietabacAuthor
Contributor II
January 25, 2026

​@Pools-3015  - I had used it in my last place and everything worked. When I had tried just wi-fi then, Sonos simply did not work for me, but Boost did the trick.

I’m not bent on using Boost - at this point, I’m just trying to minimize variables as I get it working.

In this case - Sonos S1 asks me to join the sonos SSID, but even though I join successfully, the playbar fails connection

Pools-3015
Pools-3015
Prodigy I
January 25, 2026

Who is your new ISP?

What device did they provide for internet access?

If it is a combo device, was it placed into bridge mode so that you can use the Eero for routing? If not you may have a double NAT issue that may be preventing you from having the speakers connect properly to your WI-FI.

bertietabacAuthor
Contributor II
January 25, 2026

Comcast + Motorola B12 + 3 Eero 7 Pro 

Some googlefu later - this is what I read

“Eero bridge mode turns off routing, DHCP, and security features, allowing an upstream router (like an ISP gateway) to handle network management while eero acts as a mesh access point. Enable this in the eero app under Settings > Network Settings > DHCP & NAT > Bridge. It prevents double NAT issues.”

 

Alternative: Instead of bridging eero, it is often better to put your ISP-provided modem/router combo into bridge mode (or "passthrough" mode) and let eero handle routing.

Question: are both these options with or without boost?

Pools-3015
Pools-3015
Prodigy I
January 25, 2026

You should not have a double NAT issues with the B12 and Eero Pro 7.

Which Eero node did you connect the Boost to? I believe you NEED to connect it to the main node that is connected to the modem. Have you tried that?

Stanley_4
Stanley_4
Grand Maestro
January 25, 2026

Too close is bad for wireless, less than 3 feet and radios are swamped by more signal than they can process. Every wifi device should be 3 plus feet away from another for clear communications.

Same distance from any other radio or rf noise generating devicce.

bertietabacAuthor
Contributor II
January 25, 2026

I can try that and report back, because the Boost is not not connected to the main eero.

However - what was also weird is that I was asked to join the sonos wifi - I do not recall needing to do that the last time this worked. 

Stanley_4
Stanley_4
Grand Maestro
January 25, 2026

Why are you using S1 software? You don't have it listed in your profile but the gear you listed above is all S2 compatible.

Is there any chance you are using a Bridge and not a Boost?

bertietabacAuthor
Contributor II
January 25, 2026

​@Stanley_4  - a few years ago sonos forced me to the S1 App (after trying to upsell the newer sonos).

 

I was not aware of the existence of an S2 app.

Stanley_4
Stanley_4
Grand Maestro
January 25, 2026

Here

https://support.sonos.com/en-us/article/update-to-the-latest-sonos-app-using-the-s1-controller

 

But Boost or Bridge, that is important. 

bertietabacAuthor
Contributor II
January 25, 2026

​@Pools-3015  I connected the boost to the main eero that’s connected to the modem. The S1 app continues to “see” the boost, but I’m not able to add the playbar - with or without ethernet.

Then I disconnected the boost entirely and reset the app and was able to add the playbar while it was connected to ethernet.

Next, when I tried to add the sub, same dealio - no green light, flashing red lights or steady white light. Says it’ll connect, but does not connect.

and ​@Stanley_4 The new Sonos app does not recognize any of these.

I was so enamoured with the Sonos when I bought it - ultimately I realize that hard wiring dumb speakers is just an amazing low tech way to recoup your weekend.

 

Moderator Note: Modified in accordance with the Community Code of Conduct.

Show more replies
Terms & ConditionsAccessibility statement