Hi @Ericfoxny.

Thanks for reaching out and welcome to the community! We’d be glad to help.

If you can't use your Sonos system at all and your app is showing an error message such as "We can't connect to Sonos," see our article Your Sonos system was not found.

Wireless interference can contribute to issues like Sonos speakers disappearing from the app.

You can visit our article on reducing wireless interference to learn how to change wireless channels and move Sonos away from certain electronic devices in order to avoid interference.

Let us know how that goes.

Sorry to hear you’re going through this.  As a fellow long time Sonos user who is now grown frustrated at this company’s inability to address these WifI interference issues FOR YEARS now, its incredibly frustrating.

Get ready for a bunch of canned responses as to how its not sonos fault, rather, you need to possess the skills of a skilled network technician and adjust various wifi channels due to interference, constantly plugging in and unplugging your components or trying to connect an ethernet cable to any/all devices to get them work.

Regardless if it is Wifi interference this inexcusable for a company of this stature to not have a fix for this.  As a once proud owner of 2 play 1s, play 5 and now a sonos connect amp to power some bose ceiling speakers, its incredibly frustrating to have to go through a fresh resintall on a weekly basis because the app cannot find my system.  No I do not have a mesh wifi system at play, I got rid of that thinking that was the root cause to previous issues and yet they still persist.  

Now, get ready for the canned sonos fanatics who think sonos can do no wrong and are gonna walk you through a length and complicated process just to get your $1k plus speakers to work as advertised. SHAME ON YOU SONOS 

Hi @Ericfoxny 

Are you still having this issue? 

If your new phone is an iPhone, you need to make sure it is allowing the Sonos app to access the local network. 

To enable Local Network permissions on iOS 14+
 

Note: This feature must be enabled in order for an iOS 14 device to connect to a Sonos system.

1. Navigate to Settings > Sonos.
2. Toggle Local Network On
   
   
   

If you continue to have issues after this, I recommend you get in touch with our technical support team, who have tools at their disposal that will allow them to give you advice specific to your Sonos system and your network.

You should almost never be required to completely set up your Sonos system from scratch - please get in touch with technical support any time that you feel you need to do so, as there’s probably a much simpler fix. Sonos system updates require the speakers to reboot as they install the update - it’s likely that your speakers, once connected to your network stay connected, but they are having difficulty getting connected after these reboots. Our technical support team will assist you in making your network more stable for Sonos operations.