In my household, I'm the only person who trulely relies on the internet speed. Our current modem has a finicky puma 6 chipset which is known for having shaky connections for video streaming and gaming. So I was gonna buy a modem which I will plug my own router into then plug the other modem (which is a router modem combo) into my router... would there be 2 different connections that work well? or will the modem/router combo not get a connection?