How to connect to Wi-Fi on an iPhone 4s
So I recently upgraded to an iPhone 4s and when I got home to connect it to Wi-Fi it kept saying my password was incorrect, so I went back, and then when I went forward again, it didn't ask for the password. Now when I try to connect it from Settings, it doesn't even ask for the password, it just refuses to connect and I'm using up my data. How do I get it to connect!