Interesting, My current Router has a Fixed IP address. I have used VPN`s, mostly to get UK broadcast download when in the USA, BBC for one, don`t like you watching UK stuff, in my case Rugby, from over there. Nord, is allegedly very good for that. I just got a month at a time on an American VPN, back when. I ocasionally "drop in" on US local News chanels, some of whom don`t like it either! Some VPN are said now to be switchable? literally with one click?.
Pete