I am confused as to exactly how something like this works. It is called a "Wi-Fi Router". Does that mean if I connect this thing into my current router, then there is a double NAT situation? I don't ...

So I'm a legacy TWC customer. Yesterday, I got an email sayin that I need to upgrade my cable modem by Jan 8th or lose service. The options listed in the email are to get a Spectrum modem via ...