i have a 15'' macbook pro (2007) and a secured wireless network in a wireless router. my mbp keeps disconnecting almost every 5 minutes.then i have to turn off the ap,turn on the ap, insert EVERY TIME I CONNECT THE PASS (even if the remember pass box is checked) and redo this step every 5 minutes. it's really annoying! oh, and for some reason sometimes i turn on the ap,connect and sais "self assigned ip" and i got no internet connectivity. IN MY WINDOWS PC EVERYTHING WORKS GREAT! it's a shame. oh,and if i set up the wifi router again with no password..guess what..it works! the same thing happens on my APPLE! Airport Express. please help me, what shell i do?