📲 The new Sonos App & Player Updates for late-January are Now Available! 🔊

That sounds a lot like a local network issue of some type. As a precaution, I’d try a network refresh, by unplugging/powering off all Sonos devices, then rebooting your router. Wait two minutes, then plug back in / power up your Sonos. Wait another two minutes, then open your controller, check and apply any updates, and test. 

Well, I wrote too fast. This evening the Android app disconnects itself from the system and cannot “join system” again. It says “OK” but nothing happens.

The S1 app had been rock solid for several years. Absolutely no issues. None. This new one has been an utter joke ever since I upgraded. And mind you, I have waited approx. 5 (five!) years since it had been released before upgrading. So I cannot even imagine what it had been like in the beginning...

I have done the power down route ​@Airgetlam  suggested but no difference. This happened immediately after a controlled, manual, app update (several days after the firmware) and is happening, on and off, still. No other changes... at all!

​@MarqsM have you tried quitting and restarting the app after doing a 'successful' system find (i.e. swipe up the app and relaunch it) rather than waiting? For me this is successful with app loading the system OK on the restart - I never had the patience to wait more than a minute or so after the unsuccessful 'successful' find…

(the S2 app was actually pretty good before they started the redevelopment amd it was local... what nearly 2 years ago now 😱)

Then I would recommend that you submit a system diagnostic within 10 minutes of experiencing this problem, and call Sonos Support to discuss it. Don’t post the resulting diagnostic number here, Sonos’ lawyers get sensitive about GDPR, I suspect.

There may be information included in the diagnostic that will help Sonos pinpoint the issue and help you find a solution. They’re likely to see something we in the public can’t.

When you speak directly to the Support staff, they have tools at their disposal that will allow them to give you advice specific to your network and Sonos system.

​@Airgetlam good 'ol copy and paste still working well then Bruce 🤓

When it is the correct action to take, yes. No reason to retype the same thing, over and over. 

I’d poke around your network gear for anything that looks like IGMP. Especially if you have any managed switches connected anywhere. 

I like the term ‘discuss’ in these looping canned responses. 😎
Not ‘resolve’, not ‘get help’. Just discuss.
All one needs to know about Sonos Support. :)

 

Thanks for the tip...

However as of this morning the issue, in the same way it arrived, seems to have melted away into the ether. 

I have double checked my network anyway and IGMP is disabled (as I thought). No subnets or VLANs in the equation either... but it seems to be gone now anyway so 🤷🏼‍♂️

My understanding, and from what I’ve seen in Wireshark, is that Sonos uses IGMP, so trying to get your head around what you have there and how it should be configured might be worthwhile. 

👌 actually been doing that since my last post and think I might have to have a bit of an exploratory play with my settings at some point. For the timebeing though, since my system is now and historically has been very stable without it enabled, I am inclined to leave it how it is... for the moment at least 😁

Just done the latest update and now cannot play anything from Plex. I can see all my music and can add to the queue, but when I attempt to play I get an error message saying the track is not available in Plex, repeatedly working down the queue until it times out. Nothing has changed in Plex and all was working fine this morning.  Have tried re authorising Plex and restarted everything, but no joy. Plex is my main service so hopefully this is just a temporary glitch. 
 

Any advice would be greatly appreciated. 
 

Please ignore the above, rebooted my NAS and reconnected Plex and all seems to be working again. Apologies for assuming this was a Sonos issue, when it appears to be a fault elsewhere in my network.

Updates often confuse Sonos as do power cycles. Aggravating but not serious as the problem usually passes in a day or so. You can usually speed the clearing by doing a refresh of your network. Power down all Sonos Reboot router and power up the Sonos and things should be back to working.

If it happens often you can assign static/reserved addresses to all Sonos and do a refresh to lock them in.

If you haven’t already, I suggest “reserving” IP addresses in your router.