I am just posting this here in hopes that others find this via a Google search. Please post a comment if you are also experiencing this problem.
EDIT May 30, 2007:
Apple finally recognized that they had a problem with their airport extreme drivers on the new Intel machines, but the catch was that its a problem with 3rd-party routers using WPA or WPA2 (the only secure wifi protection). This finally explains why I couldn’t properly connect my MBP to any wifi router that used WPA protection, but it connected fine if I manually connected the machines or used WEP protection.
I just bought the new 15″ Macbook Pro 2.16 w/Core 2 Duo around Halloween. I loved my old 12″ Powerbook, but I wanted a more powerful machine with more screen real estate. I am enjoying this machine for the most part, but one thing that is a complete dealbreaker is this laptop’s inability to maintain a wireless connection. I connect to my D-Link DI-524 rev.D router w/the newest 4.03 firmware successfully but after about 10mins of use the wireless just craps out. I don’t have any problems with my HP NC6000 laptop connecting to the same router. I have also experienced this on a Linksys WRT54g v5 (i know this version is the crappy version wo/Linux support). I have tried everything on the forums. I think there may just be something wrong with the Draft-N card they put in this thing.
UPDATE: I have managed to keep connected to the Linksys WRT54g by manually setting the IP address. Not sure why this does anything, but I did notice it took a long time to acquire an IP address automatically before.
UPDATE AGAIN: Apple seems to have heard the complaints on messageboards and the blogosphere and released an update to solve the problems on my Macbook Pro’s airport being worthless.
Another UPDATE (2-19-2007):
Apparently Apple didn’t think update was neccessary because they have pulled the update from Software Update and from Apple.com link above. You can still download it at VersionTracker: http://www.versiontracker.com/dyn/moreinfo/macosx/28282. Not sure why they pulled it, but it helped out with my problems.
People were talking about this at MacFixIt:
MacFixIt reader John Crook writes: “On my new Core 2 Duo MacBook Pro (15â€) I found that my Airport connection was intermittently â€œlockingâ€. My laptop could not ‘see’ either the internet or my router â€“ even though the menu bar showed full signal strength. A reboot was necessary to restore the network connection.
“(It appears) that Airport Update 2006-002 has fixed this problem. […] No problems since I applied the update. I was usually getting the problem at least once a day and most often after a wake from sleep. Due to the intermittent nature and inability to reproduce the problem it’s hard to be certain, but Iâ€™d say itâ€™s looking very likely that the problem has been fixed.”