There are also time limits associated with that page for administrative reasons. If you wait too long, your database connection will reset or the page will refresh back to the beginning. Only the first eight characters are significant. Each password must contain at least two alphabetic characters and at least one numeric or special character. Each password must differ from the user's login name and any reverse or circular shift of that login name.
ALL passwords are case sensitive.
New passwords must differ from the old by at least three characters. For comparison purposes, an upper case letter and its corresponding lower case letter are equivalent. I am Ready to Change My Password.