No Sound from Sonos Connect (Tried Everything – Need Help!)

Question

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 issueWhat I’ve Tried:Checked all volume settings – Set output to Variable, increased volume in the app	Tested different outputs – Tried both RCA (analog) and digital (optical/coaxial)	Tried a different amplifier – No sound through a second amp either	Tested Line-In on Connect – It detects the input but still doesn’t output sound	Grouped Connect with other Sonos devices – Other devices play audio, but Connect does not	Restarted and power-cycled everything – No change	Factory reset both Sonos Connect units – Re-added to Sonos system, still no output	Tested wired and wireless network setups – No change	Verified that the amp isn’t receiving a signal – The NAD amp has auto-standby and correctly detects no signal coming inWhat’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 levelQuestions:Has anyone else experienced no output from Connect on S1?	Could this be a firmware issue in a recent Sonos update?	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.

Sotiris C. · Accepted Answer

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.

buzz · Answer

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.

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