iPad Can't Connect to School Network Post-iOS 4.2.1

I can't connect to wifi network on campus now that I've updated my iPad to iOS 4.2.1. The odd time when I can connect, the Internet takes forever to load a page & often it just times out making my wifi only iPad useless at school (the reason I bought the thing). Meanwhile my iPhone on 4.2.1 works on the school wifi with no problems. My iPad works on every other wireless network I've tried except for the campus one. I've even tried resetting my network settings & resetting my iPad but nothing works.

HELP!