I've entered my new password twice and the old one once, and I can't save the page and complete the process.
Your password must be a complex one--the "thermometer bar" to the right of your new password cannot be yellow or gold, it has to be green (i.e., 100%).
Please note that an unsuccessful login attempt will inform you that information about your browser, IP address, and the failed attempt has been logged in the system. This is part of system security to prevent and document unauthorized access attempts.