Download Manager and Universal ID: S-User Logon or Password Reset No Longer Possible?

Like many people, I finally gave in and activated Universal ID because of the messages indicating this would become mandatory. I never did it before because I only have the one S-user account, so it was never a problem.

Now it's a problem.

Specifically, Download Manager is still not compatible with UID, but if I try to logon with my S-user, it fails, and inevitably (after just one attempt) I get an email indicating that password logon has been locked out for an hour due to 5 attempts.

I understand that the workaround for this is to reset the password specific to the S-user (because it's apparently not the same as the UID password), but once UID is active, there doesn't seem to be a way to reset the password specific to the S-user.

I'd deactivate Universal ID in a heartbeat if I could 1) be sure it wouldn't also deactivate my S-user, and 2) wasn't now going to be mandatory to have active.

I can get around the issue with downloading single items at a time through the web browser, but as a Basis administrator that isn't going to be very realistic next time I do a suite of dozens of support packages. I need to solve this.

So, the question is, how do I reset the password specifically for my S-user? Obviously resetting it for the UID doesn't actually change it for the S-user.

Cheers,
Matt