I see this all the time at home. We can fire up a browser and attempt to get data before the Mac has made a connection to our AirPort Extreme. I've seen it with a 2007 MacBook, 2010 MacBook Pro and 2011 MacBook Air. It's counter intuitive, but at work I find that I get an IP address from our Cisco wireless network faster than I get one from Ethernet.
5/2/13 at 11:49am