SBG10 not connecting to COX internet

Here we go again. My Arris 1759 SBG10 won't connect to COX interweb. I have 5 solid green lights, did a factory reset, all lights still solid green. No internet. It worked great a year ago, I recently got a new contract with COX, now the beastie won't connect. Wifi works, just no internet. I'm wondering if the manual settings should be changed. Like maybe COX MAC address, etc.???