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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

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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.
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24 replies

AjTrek1
AjTrek1
January 24, 2026

First of all if you must use a Boost it’s only recommended in extreme situations. Sonos prefers WiFi as the means of linking all speakers. Furthermore if the SonosNet is required it’s also recommended to wire a speaker to your router instead. So the question is why are you trying to incorporate a Boost into your system?

Note: Speakers used as surrounds; nor a sub, cannot be used to create the SonosNet

Together Everyone Achieves More = T.E.A.M.
    Pools-3015
    Pools-3015
    Prodigy I
    January 24, 2026

    Why are you trying to add a Boost? It should not be needed at this point.

    If you are having connection issues, you may need to take a closer look at your network instead.

    If all the speakers you have, form a home theater system, try hardwiring the Playbar, leaving it WIFI enabled in its settings. The Sub and Play 1 as surrounds, bond to a private radio transmitted by the Playbar and not your homes WIFI. 

      Stanley_4
      Stanley_4
      Grand Maestro
      January 24, 2026

      Consider that Sonos no longer sells the Boost or a replacement for it, maybe it isn't a good option today. 

        Smilja
        Smilja
        January 24, 2026

        Furthermore if the SonosNet is required it’s also recommended to wire a speaker to your router instead. So the question is why are you trying to incorporate a Boost into your system?

         

        Because there is no speaker placed next to the router, or for aesthetic reasons? Because that is exactly why the Boost was designed in the first place. Why do some people think that the Boost is inferior to wiring a speaker? It is not.

        »And the world is like an apple whirling silently in space, Like the circles that you find in the windmills of your mind.« (›Windmills Of Your Mind‹ [1967]. Music by Michel Legrand ; English lyrics written by Alan & Marilyn Bergman)
          AjTrek1
          AjTrek1
          January 24, 2026

          Furthermore if the SonosNet is required it’s also recommended to wire a speaker to your router instead. So the question is why are you trying to incorporate a Boost into your system?

           

          Because there is no speaker placed next to the router, or for aesthetic reasons? Because thats exactly why the Boost was designed in the first place. Why do some people think that the boost is inferior to wiring a speaker? It is not.

          As you seem to think I’m the only one with the opinion of the Boost to be a last resort choice maybe the quote below will answer your question. I’ve also provided the link. And yes it is a second level choice to wiring a speaker. However, make your own decision as mine stands as I stated. Furthermore, I asked the question of the OP for their reason…not yours!

          Boost end of sale

          Sonos Boost is a product originally launched in 2014 that was designed to serve as a hard-wired connection between Sonos and a home network, or to extend a Sonos wireless network. Boost is no longer being produced and is unavailable for purchase from the Sonos shop.

          Most Sonos products with an Ethernet port can provide the same functionality as Boost when wired into a network. However if your wireless network has a strong and consistent signal throughout your home, we recommend connecting Sonos to your WiFi network instead.

          Link

          Together Everyone Achieves More = T.E.A.M.
            Smilja
            Smilja
            January 24, 2026

            ​@bertietabac, Unplug all of your Sonos units except for the Boost.

            1. Reset the Sonos app, and re-connect it with an Existing System
            2. Open the app. Do you see the Boost? If so, factory reset the Playbar, subsequently add it to an existing system as well
            3. In the Sonos app, do you see the Boost + Playbar? If so, factory reset & add the Sub and the Play:1s one by one as outlined in 2.
            »And the world is like an apple whirling silently in space, Like the circles that you find in the windmills of your mind.« (›Windmills Of Your Mind‹ [1967]. Music by Michel Legrand ; English lyrics written by Alan & Marilyn Bergman)
              AjTrek1
              AjTrek1
              January 24, 2026

              ​@bertietabac 

              Note: If the Playbar is the only Sonos room in your home; as the Sub and any Surrounds are not, a Factory Reset will destroy any Playlists you have created.

              Together Everyone Achieves More = T.E.A.M.
                Stanley_4
                Stanley_4
                Grand Maestro
                January 24, 2026

                The Boost only supports older wireless standards and only on 2.4 gHz so almost any modern router will do better at hosting other Sonos, mesh even better. It also only supports Sonosnet v2 so newer Sonos won't connect to it. 

                Maybe compared to wiring an older speaker the Boost is going to provide similar performance. How it compares to a newer speaker, one that supports Sonosnet would be interesting to look up.

                I'm firmly in the Wi-Fi camp as a default option.  Maybe after working with support and not getting that working I'd see wiring as a possible solution. I'd still have un-wirable ones (no access) and wifi only ones to deal with. The Ethernet Era dongles would be an option, but not cheap. 

                bertietabacAuthor
                Contributor II
                January 25, 2026

                Thank you all so very much for your prompt responses - I followed your advice ​@Smilja 

                 

                1. I unplugged all devices from power
                2. I reset the app
                3. I logged back into the S1 app and I connected to existing system
                4. I was able to see the boost -and so I factory reset the playbar and tried connecting it via S1 App>Settings> System> Add Product
                5. I saw flashing green lights on the playbar and it went farther towards connection (i.e. made the sound)  but then failed - apparently I was not close enough to the router (I was a foot away from my eero and the boost)
                6. so I tried to wire an ethernet line in - tried both lan ports on the playbar, but same result.

                What else may I try? 

                thank you

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

                Can you please answer one question?

                Why do you want to add the Boost to your system?

                Is there some issue you are trying to solve? OR do you simply want a Sonos system setup like it used to be?

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