We have a desktop PC wired into an Airport Extreme and then my macbook pro wirelessly connected. We are both running at the same speed - slower than dial up! I had Time Warner talk me through checking the connection and everything is fine on their end. They said it the problem was airport. I called Apple and was suggested to "change channels" to an odd number instead of using "automatic" through manual set up. Tried that - just as slow. I also upgraded to 7.4.2. That didn't help. Any ideas? Thank you!