Q: I have a new Iphone 5. I have email set up on the exchange. Every morning it asks for my password and doe not recognize it. I have to go into setting and retype the password in order for it to recognize it. How do I fix it?

I have an Iphone 5. Email is set up on exchange. Every morning it asks for my password and then does not recognize it. I have to go into settings and retype the password in order for it to recognize it. On our other iphone it does not ask for a password. How do I fix this issue?