It seems to me that a lot of people have auth denial when trying to make connections to MySQL. They seem to ignore the text of the error message. ‘Access Denied’ means access denied, nothing else.
Remember three things have to match. The host as MySQL sees it, the username, and the password. When MySQL returns access denied it’s not broken. One or more of those three things does not match. I don’t really need to reiterate what’s in the manual. Chang the lock or change the key to make it fit.