WPA problem

So I have a 2nd Gen 32gb Touch that is giving me some trouble.

I can connect to WEP just fine.
When I'm at work we have WPA on our wireless. I can connect to the network just fine. BUT when the Touch goes to powersave mode it looses the connection and I have to input it again. We are not broadcasting the SSID. We do have a public wireless, where it will bring you to one of those "Do you argree to our policys blah blah blah, then login with the public username/password". I can get to that everytime. It is just a pain to login.

I have yet to flash the Touch. Any ideas.

 

Well I can connect and login to the public wifi, but it requires a login each time. It is kind of a pain to open the browser, login, then do what I want. Set it down for a few mins, and do it all over again.