They’d probably all be reporting interference, if the matrix was able to display it. There could be more detail in the full diagnostic. You’d have to submit one and then contact Sonos Support quoting the confirmation number.

Did running the system in WiFi mode not help?

Did running the system in WiFi mode not help?

I believe, after having tested it for a couple of days now, that it DOES help. I haven't noticed any dropout and have been spinning quite some records throughout the last couple of days.

There also was enough (more than usual) interference with kids running around with their mobile devices, but this didn't result in any noticeable dropout.

(Audio compression; uncompressed; Line-in audio delay; 2000 ms)

Are any now operating on 5GHz? In /support/review, click on each node to expand, then ‘/proc/ath_rincon/status’. Note the frequency (MHz) after ‘Operating on channel’.

Hi Ratty
 

Most of them are on the 5 ghz (i guess)
 

The 2 one's in my kitchen as well as the playbar seem to be on the 2.4

The rest (including subwoofer) seem to be on 5

Is this any good? Any ideas on how to get the ones in the kitchen also on 5 ghz ?

The Playbar satellites would be on 5GHz as they’re directly connected to it.

The Playbar itself and Ones -- assuming they’re gen 1 -- would have to be on 2.4GHz. The list of models which can use a 5GHz SSID is here:  https://support.sonos.com/s/article/126

Hi Ratty
 

Thanks again. The ones in my kitchen are gen2. (one of the ones is a one SL)
Any idea how to switch those 2 ones to 5ghz
For the playbar I understand this is not possible

You can't force them. They'll just pick the best signal available. 

Ok. Too bad.  (Even turning them off/on didn't change the chosen signal. Both remain on 2.4ghz)
But, again...Thanks for explaining. Really helpful and appreciated!

Well at least the Port has apparently connected to the 5GHz. That may help.

I believe it does as the dropouts are significantly less (read: not occurred so far) since I've switched from sonosnet to wifi

The port on 5ghz might be doing the trick

Hi @ratty 

The Sonos app is now stating that "Kitchen (keuken)” is not configured. When looking at the "status” it shows that the Sonos kitchen Left is on 5ghz while the Sonos kitchen Right is on 2.4ghz

Can this be causing the anomaly?

Thanks upfront for your help!

Does the app still complain if you force-stop it and restart? 

Yup. It does. Also after a reboot/restart of my Iphone it keeps complaining.

But when I put on a vinyl record, autoplay is triggering “kitchen” to start playing and both sonos one's in the kitchen will play….but I cant control them as "kitchen”doesnt show up in the app.

So I have audio...but no control :-)

That can’t be intended behaviour at all. Time to submit a diagnostic, post the number and get someone from Support to study the full system entrails. There’s nothing in the user-accessible info at /support/review which could help.

update: Opening the sonos app on my iPad is displaying "kitchen". Iphone doesnt seem to detect Sonos One (L) which is, together with Sonos One (R) forming the group "kitchen

The app on the iPad does see both Kitchen One's….as well as the "kitchen” group

The iPad is okay? Is it on a different WiFi band to the iPhone? 

Nope. That's the strange thing
Both are of the same wifi (ssid) and both are in the 5ghz band
When i open the app on the iPhone today, all seems to be fine again. So also the iPhone shows the kitchen....

Disconnected the kitchen one (L) from power for 30 sec and then plugged it back in. Both kitchen ones are now back on 2.4ghz and the problem seems resolved.

Could this have been the RCA? If both Ones are not on the same band (even though they're on the same SSID) that the app states that 'keuken'/kitchen was no longer properly configured?

It sounds like it. The system would much prefer the stereo pair to be on the same channel, as one can then communicate directly with the other rather than having to go via the router.

Maybe Sonos needs to do some additional work to address all this. Connection to 5GHz WiFi is a relatively new option, so perhaps this is a teething issue.

One option you could consider is to split your router bands, naming the 2.4GHz and 5GHz differently. Add both to your Sonos system and see if that makes any difference. 

I've already got a guest network available on my router. I believe this then also would do the trick
If i put kitchen on guest network ssid and the rest on the regular network, will the app, who'll be on the regular ssid, still be able to see the kitchen when this is on a different ssid?

You can't use a guest network. The whole point of a guest SSID is that it's isolated from the main network. 

It'll usually be on a different IP subnet, and/or have wireless client isolation to prevent devices from seeing one another. 

Understood. So eventhough the iPHONE app would be on SSID 1, it is still able to control the SONOS devices which are on SSID 2?

If SSID1 and SSID2 are the regular 2.4GHz & 5GHz WiFis (not the guest one) it should work fine, as everything will be on the same IP subnet. There are a few routers which can cause trouble but they’re pretty rare.

As I say, the guest network is useless for Sonos.

Understood. I misread the CAN'T use. My bad. Thanks for re claryfiyng. 

It's getting stranger and stranger…

The line in (ingangsbron) is not found, but music is playing...as to be seen with the 3 vertical icons on the right

So I'm playing vinyl via the port (line in), even though the systems doesn't recognize the "draaitafel” (turn table)

So I'm completely lost now.

How can I play music via a device (port) which officially isn't know to the sonos app?

Connecting to wifi is getting worse and worse by the day. (The drop outs are almost gone, but operating the sonos via the app is almost undoable) (Randomly devices are disappearing as they're no longer seem to be connected/detected)