I should add that, when the Connect Amp is set up as surround sound speakers, I don’t hear music coming from them when I play SONOS sources. No volume from any source unless they’re configured as a separate room and not surround sound.
Is the Connect:Amp set to “Full” when playing music? What sound format does the app display when you watch TV?
Music Playback is “Full” if that’s what you mean. How do I check sound format on the TV?
I should add that, when the Connect Amp is set up as surround sound speakers, I don’t hear music coming from them when I play SONOS sources. No volume from any source unless they’re configured as a separate room and not surround sound.
Are both your PlayBar and Connect;Amp wired back to your router, or to the same network switch?
I was quite frustrated with my surrounds until I realized the source I was playing said multichannel, but the App's now-playing screen showed it was really just stereo.
What source and what content are you playing?
The playbar and sub are wifi, the connect is wired to the router.
Stereo or multi channel or mono - shouldn’t I hear something when playing music and not using the TV?
The playbar and sub are wifi, the connect is wired to the router.
Stereo or multi channel or mono - shouldn’t I hear something when playing music and not using the TV?
All your HT products need to be wired, when using a Connect Amp. There are a couple of options - see this link:
https://support.sonos.com/en-us/article/set-up-connect-amp-as-surround-speakers
That’s undoubtedly why you’re having these issues with your surround speakers.
@Steve_245,
Note: you can get away with a wireless Sonos Sub, but the PlayBar and Connect:Amp will need cabling to the same switch/router - I’d wire the Sub to the same switch too, but perhaps try it wireless and see.
That web page says……
- Both the Sonos home theater speaker and Connect:Amp are wired to the router with an Ethernet cable.
The Connect Amp already has an ethernet cable going to the router. So if I run an ethernet cable from my Playbar to my router do I also have to run an ethernet cable to my sub or can that remain wireless? There’s no way I could run an ethernet cable to the sub because of where it is.
That web page says……
- Both the Sonos home theater speaker and Connect:Amp are wired to the router with an Ethernet cable.
The Connect Amp already has an ethernet cable going to the router. So if I run an ethernet cable from my Playbar to my router do I also have to run an ethernet cable to my sub or can that remain wireless? There’s no way I could run an ethernet cable to the sub because of where it is.
You just need to wire the playbar to the router - the Sub should be fine. 
Nope. The Playbar and Connect Amp are connected to the router and I have the same problem. There’s either no sound or sound so low it’s undetectable coming from the Connect Amp speakers if they’re configured as surround sound. The Sub is connected wirelessly and cannot be connected with an ethernet cable because of where it is.
If I set up the Connect amp as a separate room it works fine.
Is there anybody else with this setup? Somebody who could send me screenshots maybe? I don’t see why it matters which TV I use.
Nope. The Playbar and Connect Amp are connected to the router and I have the same problem. There’s either no sound or sound so low it’s undetectable coming from the Connect Amp speakers if they’re configured as surround sound. The Sub is connected wirelessly and cannot be connected with an ethernet cable because of where it is.
If I set up the Connect amp as a separate room it works fine.
Is there anybody else with this setup? Somebody who could send me screenshots maybe? I don’t see why it matters which TV I use.
In that case it’s probably best to first reproduce the issue seen/heard and immediately submit a Sonos system diagnostic report from within the Sonos App, note it’s reference and contact/chat with Sonos Support Staff via this LINK and see what the Staff can perhaps suggest to help you to resolve the matter.