I did a little poking around and couldn’t find a similar issue, so thought I’d post a new thread.
I have a Sonos Move (5ghz), a Sonos One (2.4ghz), and Play 5g2 (2.4ghz). Within the last few days, the two 2.4ghz speakers continually disappear from the controller app. Interestingly, they both continue to work with voice commands (e.g., I can ask the Sonos One for the weather forecast with Google Assistant). And if I press Play / Pause, the last streaming service will pick up and play .. so they are still clearly on the network.
Additionally, if I login to the Sonos website and look at my products, they all show as online. However, they aren’t showing up in any of my controller apps (Mac desktop or iOS). All throughout, the Move has been unaffected by similar issues.
I’ve tried changing the router’s 2.4ghz radio channel, powering the Sonos speakers up / down, and so on. The only thing that temporarily works is a power cycle on the speakers .. but within ~60 minutes, they’ve disappeared again.
Anyone ever experience something similar and have thoughts on how to solve?
Best answer by Ken_Griffiths
What type of router are you using? Is it a centrally based router, or are you using a mesh-type system with hubs? Do you have any WiFi access points, repeaters. extenders or powerline adapters and finally, are you using any managed or unmanaged switches?
My thoughts are that your devices are switching access points which may have the same SSID/credentials but possibly operating on a different WiFi channel.
You maybe able to solve this quickly by wiring just one Sonos device to the main router permenantly and then doing these two steps...
- Set the SonosNet channel in “Settings/System/Network” of the Sonos App so that it is at least 5 channels away from your chosen router 2.4ghz channel.
- Remove/reset the 2.4 ghz WiFi credentials in the Sonos App “Settings/System/Network/Wireless Setup”. These are not needed when running the devices on SonosNet. You will however need to ensure the Sonos Move stays on, or is shifted over to, the 5ghz band, so ensure the 5ghz network settings remain in the slightly different area of "Settings/System/Network/Networks"