Problem to connect Sonos app on iPhone12

It said that my system was compatible with S2 so I updated to the S2 app, and bought a Boost to replace my Bridge. I had to use my iPhone 6 to set up the system. Once set up it worked also on my iPad, but not on my iPhone 12 - both iOS 14.2. After update to Sonos 12.2.2 the Sonos app my iPad stopped working (cannot find my Sonos system), but my iPhone 12 now has found the Sonos system. I have tried reinstalling the app, restarting the phone etc. I do not want to reboot the Sonos system, since it works playing music on Spotify.

I am now having this issue as well.  Because I have mixed products in my home, I am using the S1 app (I have the Play 5, a beam, Play 1s, Playbar, and Sonos Ones).  On *my* iPhone 12, I have no issues.  I am connected in the application and I am connected on my other streaming devices -- but my dad’s iPhone 12 will not connect in the Sonos app at all.  I have tried every trouble shooting option. What can I do? 

Make sure your dad’s phone is on the same wifi network as you, and that the phone is updated to latest iOS.

Then ensure the S1 app on his phone has been allowed to access the local network (go to the Iphone’s Settings->Privacy->Local network).

I am having the same issue my iPhone 12 says cannot locate my sonos system I only have us s1 compatible Products but I have four of them. My daughters iPad works fine. I tried deleting the app and re-installing but that only made it worse. I went to privacy and made sure that The local network was turned on.. I am assuming this has something to do with an iPhone update and the S1 controller- Hoping it gets fixed

So I’ve an iPhone 12 fully updated with the latest iOS. I am operating my system on S2 app. My iPad Pro has no issues in acknowledging and connecting to the system. My iPhone only sees one if my speakers. Try as I might to add the other speakers to the system via iPhone 12, they are still operable on my phone. What’s the fix??

Any chance you’re running a BT router? Have you clicked on the huge black box (on the right of my screen, may be somewhere else on yours depending on what device you’re using) that says BT SmartHub 2 - Connection Issues (April 2021)?

I have the BT Hub 2 issue which is just frustrating as I can’t use my iPhone 11 Pro with the Sonos app, it can’t see any of my Sonos network yet my iPad Air 2 which is a few year old as well as my MacBook find all the speakers fine.

Likely that your MacBook is connected to the 2.4Ghz channel, and your iPhone 11 Pro is connected to the 5Ghz channel. Which is why that rather long thread repeatedly suggests turning off, at least until BT fixes their firmware, the 5Ghz channel, so that everything connects on the 2.4Ghz, and everything will be seen.

Super frustrating, I’m having the same problem. Trying to run both S1 and S2 networks at the same time, but would settle at this point for a single S2 network that worked (with only S2 compatible devices). Right this moment all S1 components are unplugged, S2 network is working fine except it can’t be recognized by my wife’s iPhone 12 for some reason. Have tried reinstalling, restarting etc. Just now tried pausing the 5GHZ network per this thread’s suggestion, same problem. All the more frustrating (and odd) is that upon reinstall of the app, the phone seems to think it has found the system, but then it kicks you right back to the “can’t find system” screen.