I have recently installed the original airport card into the appropriate slot of my 2002 Quicksilver. That Mac is currently in my college apartment on campus. However, while it is aware of my iPhone 5S when it is a personal hotspot, it cannot even see the university "UCD Wireless" passwordless network, or the the secure 801.X "eduroam" network. My suspicion is that the router only broadcasts at wifi g/n, but that seems unlikely for compatibility. Also, I hear conflicting reports of what security standards the original airport card supports. I am currently running OSX Tiger 10.4.11 on this Mac. Can somebody clear this up for me?