After months of an incredibly slow internet connection @ home I finally discovered the problem. I have a MacBook Air 1.6 GHz Intel Core 2 Duo. It can connect to any wireless network at home, school, office, etc. However, when at home I connect my Macbook Air to a 23" Apple Cinema Display (ACD) the internet goes from 1500 Kbps to 60 Kbps. Not believing the reason I have tried it several times and there is no other factor. At home I use a 2701HG-T 2Wire router. Any idea what to do? Updates: 1) I do not have a network adapter so I can't know if the same would happen with Ethernet. 2) The problem exists whether with my MBA is opened or closed. 3) I do not change the location of my MBA when I connect it to the ACD.