Firstly, I want to say that I know this is something that should be asked about at my school - and I did. I reached the Tech Office twice, and they said that they have no idea why it doesn't work for me. Anywho, here goes.
There is a wifi connection in my cafeteria that I can pick up on, and it is an "Open" network - and so I try connecting to it. The tech that I called said "after connecting to it, you should be able to open internet explorer - and it will take you to a page that requires your student ID and password - before you can continue on and browse the internet". So, I try connecting to the network. The connection never finalizes. It'll take minutes trying to connect, and yes, I do even have a green bar (strong signal). Then it seems to give up. I've tried using my USB Linksys wifi adapter as well, and I'm only given a message similar to: "Cannot associate with the access point".
To clarify, my internet wifi card DOES work. I'm using it now, at the library. I have tried asking different teachers and students... and have called the Tech Help desk twice - and even updated my wireless driver. Yet, it still does not work. I have a Dell D600 Latitude laptop, if it helps...
Added: I am able to use wifi in the computer lab in a separate building, but it's a different connection and does not have a portal login page of sorts.