I'm not sure if I'm posting this in the right category, so feel free to move this if it's miscategorized. We just received an Arris DG1670a Cable Modem upgrade from Time Warner. Everything seems to be working fine on all the computers in the house (PC) except for mine (iMac). Wireless and Ethernet both work on PC computers. My airport card is fried and the Ethernet connection doesn't seem to be working at all. It was working about 5 minutes ago connected to a Netgear Router, so it seems to be a compatibility issue.. is the Arris just not compatible with Macs? Do I need software?