What is the reason for changing the password or initial password of the third generation social security card?

It is this website that is not updated in time.

If the modified password and the original password can still be used, it should be that this website has not been updated in time, and then this will happen. If the original password like this still works, please refresh it first, then exit and re-enter it, and try again.

If that's still the case, and both the old and new passwords can be used, you can ask this customer service for the specific reason.