1. Caps lock 2. Incorrect password 3. Password is too long (Even though you can type the whole thing, it may be too long) 4. Server may be offline 5. Account is not yet registered, so it might not have reached the database 6. Your internet is kicking off frequently
My guess is that it's either the first, second, or third reason. Most likely it's the first or third. Make a new account with the password "Noodles". If it works then change your password to something around 5-8 characters. My first password was 11 characters, now it's seven and it works.