Hi @LeDoc.

Welcome, thank you for reaching out to Sonos Community since you already tried some troubleshooting steps let me help you further.

Try unplugging all Sonos devices from power, then reboot your router. Once the router comes back up, plug your Sonos devices back in.

Check for updates
In the Sonos app > System > Check for Updates.

How many Sonos devices do you have? can you tell us more about your other Sonos products?

Let us know if it works. If you need help with any other information, please be sure to let us know.

Hi Mark

Thanks for your assistance. It turns out my router transmits on 2 bands 2.4 and 5. The Move looks for 5 by default. In was necessary to switch this off to get it onto the same network as my phone. 
might be useful for others to know. 

Hi @LeDoc.

Welcome, thank you for reaching back to Sonos Community and able to find the fix for the setup.

Glad it works now.

Chears.

If you need help with any other information, please be sure to let us know