My Samsung galaxy note 2 is telling me authentication occur fail when I want to connect to wifi

[wisepat66]

Authentication problem with my wifi

 

[webworkings]

That means you are using the wrong password for the WiFi you are trying to connect to. You need to verify the password you have for it, and I would suggest turning on the ability to see what you are typing when you enter it to make sure you don't make a typo. Any caps, symbols, etc., must also be put in correctly with the password.