I don't know whether to post this here or elsewhere. A month or so ago I replaced our old router with a Time Capsule. Long story short, if I try to browse the internet with my MacBook Pro on it it becomes painfully unusable. My fiancée's MacBook Air and our iPhones don't seem to have this problem and our two wired Mac Minis and wired Mac Pro don't have the problem either. My MacBook Pro doesn't have this problem when connected to the wifi network at work either. I also have a second network in my house - shared from one of my Mac Minis which is wired in in the attic (g network) and don't have the problem when connected to that. Doing a speedtest check on my Mac Pro I get 34Mb/8Mb with a 14ms ping but on the MacBook Pro I get 18Mb/8Mb with a 196ms ping. Right now the only thing I can think of is that the airport extreme in my MacBook Pro has a faulty 'n' part. Any suggestions?