I'm at a complete loss. All the PCs on my wireless network (WPA security) are consistently connecting without issues. They experience none of the problems that I have with my MBP. When I turn my computer on or wake it up, I am 'connected' or so it says, but I am never able to reach the internet until I (wait a long, seemingly random amount of time or) disable my wireless adapter, re-enable it, and select my wireless network. I did not experience this problem prior to: -Trying out a new AirPort Extreme, returning it and going back to my old G router. The AirPort worked great for this computer, but it had problems with the PCs and the xbox 360 (yes.. i know there is a workaround now...) -Going to a WPA secure network. Prior to switching back from the AirPort I just ran an unsecured, non-broadcasted network. Any advice would be greatly appreciated!