idiot's guide? I don't know how you made a mess of things in the first place you buy a router why are you looking pick if it needs to by Router or Access Point mode it has a blue how hard is it to connect that to the hub and you have a hub 3 so any port will when you change to modem mode all your wired device go to your new router in this simple setup if for what even reason it did not work power off hub for longer try again its not that hard😤
If you have nothing useful to contribute, Alessandro Volta with two (possibly more) accounts, I'd suggest you pick other, more "worth your precious time" community questions and reflect on why you're being so rude.
