AFAIK they are legally required to maintain a list of compatible devices and accept any modem that is on that list.
If there's some US law I can cite at them like a magic invocation to make their dumb combo device go away in favor of my own cellular modem, though, I'd like to.
However, once you learn how much data is collected/sold about you from the router level you won't want to go back.
Yes, this is why I switched over to their modem-router, I was starting to hit their caps every month and it was costing me a lot of money.
I really don't care if they monitize that my live-in mother-in-law streams game shows all day.
>However, once you learn how much data is collected/sold about you from the router level you won't want to go back.
I need to be scared straight. Go on.