I have had my ipad 2(4.3) for couple of months now. I moved to a dorm a few days ago and when I try to connect to wifi and I enter the password it says "incorrect password" every time. My roommate has the exact same brand and type I router I was using in my old room (same company) which my ipad had no problem connecting with. I am not sure what the problem is as my phone and laptop connects with no problems.
When I turn off encryption it connects but when turned back on it does not accept the password.