Well, your AirPort settings on your MacBook are dependent on what network you're joining. You can remove a network and add it again, to start over. It's probably simpler to just correct whatever you need to. What's messed up? You can also click "Assist me..." then use Diagnostics or Assistant:I think you miss understood me, i ment the built in airport in my macbook, not the external hardware airport you can get
I called Apple and they told me this solution and still had some problems, but for some reason I tried it to replicate it with Camino. Well I've been running 4 hours problem free with Camino, so long Safari!1. Turn off AirPort
2. Macintosh HD>Library>Preferences>SystemConfiguration
3. Delete com.apple.airport.preferences.plist
That will discard any current AirPort settings and once you restart, everything should be in it's default state.