Sonos is playing but no sound from any source

Removing the WiFi details from the system did not help? On iOS or Android: From the Settings tab, tap System > Network > Networks. Select the WiFi network you'd like to remove, and tap Remove. Subsequently wait about 10 min, then go to 'Settings → System → About my Sonos System' and see if WM:0 is being displayed next to each unit (the Move will remain at WM:1).

If 'Auto channel' is enabled in your router/Eero mesh, then disable it and set a specific channel, either 1, 6 or 11. Change also the SonosNet channel ('More --> Settings --> Advanced Settings --> SonosNet Channel') to either 1, 6 or 11. That means when e.g. SonosNet is set to channel 6, put your router on channel 1 (or vice versa). See also Reducing wireless interference.

No, sorry, I do not have a separate SonosNet  now. I did in the past, but it was so problematic I upgraded my home WiFi to eero pro 6 and put Sonos on that instead. It has been better, but still random problems like this 

My fourth attempt to chat with a live agent has failed. I remember the glory days of Sonos when you could contact support on Twitter and get a response within 10 minutes.

Attempt #5 to get through to a live agent on the Sonos “24/7” chat has also failed.  Back to one of my original questions - what happened to Sonos?

I was able to fix it for now, without any help from Sonos “support.” Here’s how:

For each component not playing:

1. unplug from power, wait.
2. plug back into power. Wait until it rejoins.
3. Add it to group that is playing. It will play audio for a second or two, then go silent.
4. Ungroup it again, then add it back to the group again.

So, an ad-hoc fix for now. Just want to point out that when I went to bed last night it was working fine. Nothing else has changed on my network.

Sonos is the only device on my home Wi-Fi network that behaves like this. Everything else, from computer to Roku to Peloton, behaves consistently. 
 

And again, five unsuccessful attempts to get through to live support.

But Sonos isn’t a device, it is a number of devices that have to communicate with each other and with controllers.  Your observation that Roku or Peleton works could not be more irrelevant.

Put this multi-device aspect together with a multi-AP mesh network and there is potential for trouble.  If set up optimally it will be fine, but since you just insist it is a fault with Sonos, and won’t take advice, you WILL have problems again soon.

Hi @HarvE 

Welcome to the Sonos Community!

I’m sorry to hear that you’ve had such trouble getting in touch with our technical support team - all I can suggest is trying at a different time of the day.

It seems likely that at least part of your Sonos system’s issue is that some of your Sonos products - those that are not able to connect to 5 GHz - are being steered towards that frequency by your Eero mesh (band steering). This results in a Deauthorisation error, which I see happening on quite a few of your rooms. As you cannot separate the bands on a Eero mesh, I therefore recommend you hard-wire a Sonos product to the main Eero hub (or to a switch connected to the hub) via ethernet. This will let Sonos create it’s own WiFi that the speakers will be “happier” with. As you seem to have a Boost on your account which is not showing up in your diagnostics, I recommend you either reconnect this or check to see that it still has power. If the Boost is non-functional, please wire a speaker/player instead. Any Sonos device wired to your network should ideally be kept at least 3 feet away from your router or mesh nodes. You could ethernet-wire to one of your other Eero nodes, but the main one is highly recommended. As you have a sizable system, you may get better results if you ethernet-wire more than one device (ideally at opposite ends of your home/system).

If you added your Eero mesh to an existing network (as opposed to replacing the router), you will probably have a DHCP conflict, whereby random devices will end up on a second network (router or Eero) and not talk to each other. If this is the case, you can find instructions to put your mesh into Bridge mode here: https://support.eero.com/hc/en-us/articles/208276903-How-do-I-bridge-my-eeros-. Please reboot your router after doing this. This can fix many strange issues if it is indeed the problem.

Edit: I see two of us were working on this at the same time! Ah well. We both made good points.

I am sorry my frustrations came through so strongly. But, the reason why you see a Boost in my account is that I tried this in the past, and no matter what I tried there was some type of interference that created skips and lags in different components. I upgraded my Eero to Pro 6 and migrated to that, and no more skips, but these events instead. It is frustrating. But apologies for losing mycool; I do miss the Twitter account. That was great.  

@HarvE 

Due to the deauthorisations, I recommend you go back to the Boost and do what you can to minimise the skipping. Keeping the Boost 1m (3 feet) from and WiFi Access Points is a good start. If you typically use large groups, a second wired unit would definitely help, even if wired to a mesh node.

The dual DHCP issue is definitely worth checking in either case as that’s more to do with network management than WiFi reception.