Ok, so I just got my macbook pro, and I love it, I've been using it at my moms for 3 days and have had no problems. Now, I came over to my dads house, and the internet isn't working. My dad has a much more sophist aced system with network extenders, etc. I tryed first wireless internet and then I plugged it in. Still nothing. There's a box that says IP Configuration: "192.168.X.XXX in use by 00:14:38:de:6e:XX, DHCP Server 192.168.X.X" I need the internet, obviously, so I need some help getting it to work. Thanks for your help in advanced!