Just bought an Airport Extreme. If I connect my cable directly to my MBP, it works perfectly. Now, if I connect the cable to my Airport, I can't connect to the Internet wireless. I've discovered (I'm not an expert) IP address, Sub and Router numbers while my MBP was connected however, I have no idea of DNS or domain name. I'm using Comcast and I'm in Grand Rapids. If my computer was able to connect with no issues and no configuration at all, shouldn't Airport be able to connect and share the connection? Some more symptoms: - using IP, Sub and rounter #, Airport turns green. - I can connect to Airport but I can't navigate. Please, any Ideas. It hurts to me to be ignorant in IP and Network matter! Thanks a lot!