The LE and Elements versions can run either on a soft license or a USB dongle, though the full versions are dongle-only.

The soft license versions tie themselves to PC hardware and OS types, so that if you do a hard disk or OS change, you need to get Steinberg to re-authorise the soft license on the upgraded machine.

I just logged in to my MySteinberg account with no issues. Have you tried logging in recently using the new supplied password?