I have a new Iphone and I am not able to connect my wifi to it. I have the correct password. What do I need to do?

Can you see the connection at all? In your settings do you have wifi enabled?

If you are trying to hook up your phone to wifi you should check your router settings and may need to manually allow the device to connect. It should have instructions. If you are trying to hook another device to your Iphone's wifi you should check the security settings for your phones hot spot. Maybe even turn them off depending on the network sharing settings are