So I originally setup 4500 with a basic brighthouse cable modem and everything worked fine after installing and configuring it all (wifi worked great). However recently I upgraded to brighthouse's road runner lightning service (40down 5up) and they had to come out and install a new upgraded modem. The modem is connected to the net but when I hook it up to my router I don't get any Internet access, my devices can detect and connect to the router, but there is no Internet access.... Does anybody have any ideas what I need to do???