I would like to follow up on this. I have read the description of how to set this up and finally got this working. Now I would like to switch to using both a key file and the Windows account to unlock the database (I'm aware of the implications of this approach). After having that set on PC #1 the sync trigger complained about something similar to "...authentication method must be the same..." or so -- that was correct as the database on OneDrive still had the password/key file combination set. Now,...