Ring Wired doorbell will not connect!

I'm tearing my hair out! We've got a ring wired doorbell that worked fine at our old address, we've moved and it will not set up. I've uninstalled and reinstalled the app, factory reset the ring, made sure the network is on 2.4ghz, changed location and removed the old address, followed every bit of help I can find but it will not connect. I get as far as the screen where it says it's waiting for the ring to enter setup mode, then nothing, despite the ring being in setup mode and the light is spinning and it's connected to the app, but then nothing. Help!