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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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bertietabacAuthor
Contributor II
January 26, 2026

well - I did not use boost and my eero does not have bridge.

But even when I used boost - nothing worked.
​@Pools-3015  - connecting the boost to the main eero and trying to add the playbar with or without Ethernet does not work - it tries to connect and fails.

Moreover - not using boost allows me to connect to the playbar successfully, but when I add the sub, it fails again.

It feels like I can have one device connected with or without boost, but not the other.

@Stanley_4  -  the sonos app does no bettter 

Since I’ve moved and it’s a new setup entirely (new SSID etc) - is there anyway I can restart this as a new system and try again?

​
 

Airgetlam
Airgetlam
January 26, 2026

You may want to read the new router - installation instructions FAQ.

Bruce
buzz
buzz
Grand Maestro
January 26, 2026

Restarting as new would require a Factory Reset of all devices and this would be a lot of extra work.  SONOS Playlists and music service registrations will be destroyed. The easiest way to deal with this sort of move is to give the new WiFi the old router’s SSID and password. If you do this now, reboot the SONOS units. With modern WiFi, such as Eero with Access Points, BRIDGE and BOOST are a step down.

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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