I am trying to access my SBG6580 cable modem to change settings but when I put 192.168.0.1 in the address bar it doesn't work. I went Run>CMD>IPconfig and it says my default gateway is 24.138.76.1 but that does not work in the address bar either. I held the reset button on the back of the modem for 30 seconds and tried all over again with the same results. I disabled all my firewalls too and tried