Why won't my iPhone 6s accept my wi-fi password?

[iMore Question]

Why won't my iPhone6s accept my wi-fi password?

When I try to log onto my Wi-Fi a message comes up that says "Incorrect password". The password I enter is correct.

 

[Rob Phillips]

Re: Why won't my iPhone6s accept my wi-fi password?

Welcome to iMore! Try resetting your device by holding the power button and home button down simultaneously until you see the Apple boot logo. Then log back into your wifi network.