Guys I am dying Here... I have a MacBook Pro 13 Inch Pretty much brand new running 10.6.4 When I first had it home and used it the Internet was great. Now it is so slow sometimes and sometimes has no signal. I get SLOW and SOMETIMES no PROGRESS with full wireless signal. I have replaced/updated the LINKSYS router. I have called comcast and done speed test and what not and they say it is not their end that is causing the problem . I have spoken with apple .. deleted/reset/ and got a diagnostic ran on my airport.... At the apple store in the network utility pinging google took about 33-35 mil sec. at home its 88-and above... I have put in open DNS servers on and on and on i cant figure it out !