I bought my first Sonos product a year ago, the Connect Amp, mainly to play BBC 6Music through my hifi setup. That worked well enough, but I rarely even tried to use a controller, I just pressed the play button on the Connect as and when I wanted it on and it was fine.
I then decided I wanted to be able to play music or podcasts via my phone or computers (all Apple devices) and as I understand it I can't do that direct using AirPlay, so I bought a 2nd hand airport express and plugged that in - the airport is wired into the network via an ethernet cable, then another ethernet cable links the connect amp, along with a lineout cable for the sound. I've never bothered to setup the airport express as a wifi hotspot or whatever as I wouldn't use it (not sure if that's relevant).
Anyway, the network in the house is provided using an Orbi Router (RBR50) and 2 Satellites (RBS50). It's a big old house with very thick walls but on the whole I have wifi coverage everywhere I need it.
If I sit in the room with the connect amp and open the Sonos controller on my phone, it usually finds the sonos on the wifi okay and I can play music through that device.
If I sit upstairs, in my office, where I have placed the Sonos One. I get the "You're on the xxx wireless network but Sonos isn't" message.
I setup the Sonos One in the room where the Connect Amp is, then brought it back up to the office. It works fine as a speaker, but I can't use the controller to select what I'm playing (so I have to go back downstairs, select what i want to play, then come back up again, at which point the controller gives the error message above).
Can anyone point me in the direction of where this is going wrong? It's driving me insane! I'm no expert when it comes to networking but I'm happy enough to configure settings and so on if needed on the router.
Cheers in advance!