Skip to main content

Hi everyone,

I'm struggling with a strange issue with my Sonos Connect (Gen 1, S1 app), and I’m hoping someone here might have insights. I’ve tried everything I can think of, but I still get no sound output. Here’s what’s happening:

Setup:

  • Sonos Connect (90, Gen 1) running on Sonos S1
  • Connected via RCA output to a NAD amplifier
  • Tried multiple cables and different input ports on the amp
  • Amp works fine with other sources (e.g., CD player, phone via AUX)
  • Also tested with a second Sonos Connect – same issue

What I’ve Tried:

  1. Checked all volume settings – Set output to Variable, increased volume in the app
  2. Tested different outputs – Tried both RCA (analog) and digital (optical/coaxial)
  3. Tried a different amplifier – No sound through a second amp either
  4. Tested Line-In on Connect – It detects the input but still doesn’t output sound
  5. Grouped Connect with other Sonos devices – Other devices play audio, but Connect does not
  6. Restarted and power-cycled everything – No change
  7. Factory reset both Sonos Connect units – Re-added to Sonos system, still no output
  8. Tested wired and wireless network setups – No change
  9. Verified that the amp isn’t receiving a signal – The NAD amp has auto-standby and correctly detects no signal coming in

What’s odd?

  • Both Sonos Connect units behave exactly the same way, suggesting this is not a hardware failure
  • The Sonos app (S1) works fine, and other Sonos speakers play sound
  • The Connect detects inputs and can be configured, but no signal is coming out
  • It almost feels like a software issue where the output is being muted or locked at an extremely low level

Questions:

  1. Has anyone else experienced no output from Connect on S1?
  2. Could this be a firmware issue in a recent Sonos update?
  3. Any other debugging steps I should try before reaching out to Sonos Support?

I appreciate any insights – this one has me completely stumped! Thanks in advance.

Hello ​@CHonning, welcome to the Sonos Community!

I am sorry to hear you are experiencing an issue with no audio output on your Sonos Connect.

Thank you for the very detailed thread, it seems you’ve tried all basic troubleshooting I would have suggested.

I recommend you to Submit Diagnostics after reproducing this issue and then reach out to our Support Team for some live troubleshooting.

They have tools at their disposal to provide you with information and advice specific to your system and what it reports.

I hope this helps.

Just to make sure: A ZP90’s Line-In is not automatically patched through to its Line-Out. Line-In is simply a resource on the network that is physically hosted in the same box. Given your points (1) & (2) above you have probably selected Line-In, but I want to be sure.

Reply


Terms & ConditionsCookie settings