EDIT: after poking around more, it' starting to look like it's a late 2008/early 2009 mac issue. Not an airport issue. Comcast came out and installed a modem for me today. It's a normal modem modem (new docsis 3.0), which is weird that it has to be installed by a tech. Once it was 'setup' I plugged my macbook right into it. Everything worked peachy. I then plugged the modem into my Airport Extreme and started configuring it on my mini (early 2009 model). Nothing at all would work. The mini is plugged into the airport, so this is not over wireless. DHCP - nothing. Manual - nothing. Share public IP? Nothing. Distribute range? Nothing. Lame. But that's not the point. When I plug directly from the modem into the mini, I get nothing. Self-assigned IP and no DNS info. I've renewed the DHCP, reset the computer, everything I could think of. Where do I go from here? The mini was getting on my network earlier, before the new modem was installed. Now nothing. Any help would be completely awesome. I'm super right now. EDIT: Hmmm... I plugged my MBP (unibody) into the modem and got the same issue as my mini. My macbook is from early 2008... This is really frustrating.