Can't seem to figure this out. My son just purchased a new late 2014 model and he has very slow wifi. Almost makes the Air unusable at times. He has Comporium service and the 50/5 service. His old iMac was always hardwired so no test there. It bit the dust. Our iphones seems to work ok though it is not perfect. He is constantly streaming Netflix to his PS3 via wifi. Could that be it? Netflix streaming taking all the bandwidth? He also lives in a very old house. Solid brick walls. But that still does not explain why the PS3 works fine and not the Air. Any help or suggestions would be great. Thanks.