Unlike some other threads here, my iPhone 5 is not having any network/wifi issues during normal use.
However, I cannot get it to use the wifi offered at Starbucks thru AT&T. I have AT&T as my cellular provider and upgraded from an iPhone 4, which used Starbucks wifi just fine. With the iPhone 5, it seems to connect to the wifi network in Starbucks, but sends and receives no data - almost like one of those time you need to agree to some terms/condition page first.
I've tried turning wifi on/off, deleting the active att wifi connection and reloading without success.
Wifi everywhere else works fine, si I'm sure I must be missing something here.