Login Failed after password reset Answered

I have had this problem for years, yet I am only now reporting it because I have been a more frequent visitor to Instructables as of late.

Every time I login with the correct password, I get a message saying that it is incorrect. So I take the 5 minutes to reset my password, but when I logout and then try to log back in (using the password that I just created) I get the same error message, saying that my password is incorrect. 
It's taken me a while to post something about it because it only takes about 5 minutes to reset my password. Still though, I shouldn't have to go through the trouble every time I want to login.