delynn, it's not a good idea to put your email in the clear. It is spam bait. It would be a good idea to edit the email address out of your post.
LQ can forward emails to you if someone clicks on your profile and chooses to send you one.
Your user agent says Windows. Can you connect to the wireless via Windows?
If it does work with Windows but not with Linux, it would help for us to know more about your Linux computer, particularly make, model, and wireless chipset (which can be determined by running the command lspci
in a terminal).
If it works in neither Windows nor Linux, I would suggest calling AT&T support. Even if it's not their problem, they may be able to help you.
I just looked at the website--is this uverse thingee a USB dongle of some sort? Do you have a modem or are you connecting to the cellphone network?