Just to confirm...
It's very important that all of the following requirements are met so that all myWA login portals work correctly.
Failure to meet these requirements when setting up your account may result in synchronization errors.
-Be at least 8 characters long
-Contain at least 1 capital letter
-Contain at least 1 lowercase letter
-Contain at least 1 number
-Contain at least 1 symbol
-NOT contain your name, or the word "password"
Are you positive your new password meets all of those requirements?