I have my internet with Virgin Media Business Broadband.

They're coming around to replace my modem and to upgrade my internet package.

It's been about 4 years since I first setup my house with these M4 decos and I honestly can't remember the steps 😬

I checked in the app and there are no "internet/modem" settings or anything like that (e.g. no username/password of my modem in the app). 

So I think that if the modem is replaced, once it's switched back on and is confirmed as working by the engineer, that I'll then be able to get them to switch it to "modem only" mode for me, and connect it up via ethernet to my primary deco, and then it should all just... work! Right?  😅

i.e. It should just pick up the new internet connection and continue to use the same WiFi details (and other configuration) I set up in the app years back.

I just wanted to ask here first before the engineer comes around, in case someone says "noooo! there's more to it than that".

Anyway, thanks for any feedback you can give me.