Orbi (Router Mode) using as DHCP server

To be fair to VM, thier boxes are fairly straightforward (if limited in functionality), at least in tracking down the settings (BT, I recall were pretty shocking and I don't blame you for leaving them in their wrappers. Sadly don't have that choice with cable, I don't think). Am pretty sure we had the previous VM hub running in Modem only mode for a while - I got the shiny new 1g upgrade late last year, so have never tried it on the Hub4, but the navigation is the same.

That's a great suggestion of moving everything to Orbi first, thanks. I'd probably have done it the other way round and had everything offline for longer.

I've got a few things that only work on 2.4ghz but it's never seemed to be too much of an issue when setting things up previously. Ring is defo one, the Arlo cameras/lights are the other - and Arlo throws a massive hissy fit, putting loads of warnings in the app about not working on 5ghz network trying to set them up, but they then work anyhow because there is 2.4ghz network available.