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Sub Gen 2 connected but no output

  • April 27, 2025
  • 9 replies
  • 184 views

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I have a Play Bar, play 1 surround sound and gen 2 sub connected on wifi, using Apple TV and Sony TV on Dolby 5.1. Since the app incident, my sub has simply stopped any output. I can see it’s connected to the Play Bar in the system but there’s no bass, vibration, sound. I’ve spent time chatting with Sonos and sent all my diagnostics, but to no avail. Has anyone else had this issue?

Best answer by Taylorsgibs

If your Sub Gen 2 is connected but not producing sound, first check if it’s properly assigned in the app and the volume is set correctly. Make sure all cables and connections are secure and that your device firmware is updated.. Try rebooting both the Sub and your main speaker system. If the issue persists, perform a factory reset on the Sub and reconnect it. Also, test it with a different device to rule out connection problems. If none of these steps work, it could indicate a hardware issue, and contacting support for service would be the best option.

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9 replies

Schlumpf
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  • Virtuoso
  • 1537 replies
  • April 27, 2025

@JaeEmDoubleU 

What did Sonos support tell you to try?

Did you send a system diagnostic?

Restart Playbar and Sub?

Does unplugging the rear speakers make any difference?

Removed Sub from Playbar via Sonos app and bonded again?

If nothing else works and Sonos support can’t help, I would try to factory reset Playbar and Sub and set up again. 


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  • Prodigy II
  • 2607 replies
  • April 27, 2025

@JaeEmDoubleU 

You've had no Playbar sound output for a year?


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  • Author
  • Contributor I
  • 3 replies
  • April 27, 2025

Sub sound. Play bar and surround working just fine. 


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  • Prodigy II
  • 2607 replies
  • April 27, 2025

Sorry, I misread. I’d try ​@Schlumpf‘s suggestions.


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  • Author
  • Contributor I
  • 3 replies
  • April 27, 2025

@JaeEmDoubleU 

What did Sonos support tell you to try? Hard reset on sub, play bar, router, reconnect and bond with another system on my network, done it twice over. 

Did you send a system diagnostic? Yes

Restart Playbar and Sub? Yes

Does unplugging the rear speakers make any difference? No

Removed Sub from Playbar via Sonos app and bonded again? Yes

If nothing else works and Sonos support can’t help, I would try to factory reset Playbar and Sub and set up again. Factory reset both Siub and Playbar. 

The one telling aspect I can fathom is that the app gives me the opportunity to play a sound when bonding to a system, the sub doesn't make a peep. So the software seems to be working, but the hardware is the problem. The strange thing is that everything seems to be working, with the app registering the sub on both systems in my house, just zero output. 

 

 

 

 


Schlumpf
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  • Virtuoso
  • 1537 replies
  • April 27, 2025

@JaeEmDoubleU 

„both systems“…???

You can’t use the same device on different Sonos systems. Or did you just try to set up the sub on different systems?

However it sounds like your sub might not be set up correctly to your system or your devices are ob different firmware versions. I recommend to factory reset the sub and select „add a new device“ from within Sonos app if the sub isn’t recognized automatically as a ready to set up device. 
Be aware you have installed the latest version of Sonos app before so that all devices get the latest firmware. Please do also check manually for firmware updates within Sonos app for your installed devices. 
After sub is added to your system try to bond it with playbar. 


  • Lyricist I
  • 1 reply
  • Answer
  • April 27, 2025

If your Sub Gen 2 is connected but not producing sound, first check if it’s properly assigned in the app and the volume is set correctly. Make sure all cables and connections are secure and that your device firmware is updated.. Try rebooting both the Sub and your main speaker system. If the issue persists, perform a factory reset on the Sub and reconnect it. Also, test it with a different device to rule out connection problems. If none of these steps work, it could indicate a hardware issue, and contacting support for service would be the best option.


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  • Author
  • Contributor I
  • 3 replies
  • April 28, 2025

Thanks, have done all of the above. It’s a hardware issue 


Airgetlam
  • 44834 replies
  • April 28, 2025

So, what did Support say?