Do you have a FCT ?
Blanking out the UN & PW in the CM ... and saving as blank ... then closing out the Trainz program CM ... then re-entering the UN & PW, a while later ... or overnight, the next day, sometimes resets things.
At Planet Auran edit your profile ... save as it is, making no changes.
At Planet Auran edit your PW, making no changes, except for highlighting, and typing in the same identical PW ... and save