I have an iPhone 4 running IOS 6.0.1. It appears to connect to the wi-fi system in my office, but it cannot access the internet via that path. My iPad 1 is perfectly capable of connecting to the same wi-fi system and accessing the internet through it. I am also (using the phone) able to access the internet via my home wi-fi and all public wi-fis that I have tried. My office Help Desk verifies that the wi-fi system is running normally and assures me that the problem is with the phone, since my iPad (and everyone else's wireless devices) works fine.
Any ideas?
Any ideas?