Hoping someone here might be able to educate on me on the following... Got my Airport Extreme hard wired to my iMac. I have no internet on my iMac even though it is wired to the router and the router is right next to my iMac. I do however have internet on my MBP and iPad. How does this work? If the router or modem were down, then I shouldn't be getting any connection at all, right? I've rebooted both modem and AE and still no internet to my iMac. MBP and iPad though, both work fine. help?