Please forgive me if I’m misunderstanding this, but is it possible we’re getting confused regarding the various credentials being discussed?
When running Duplicati as a service and wanting to user mapped network drives, the “Log On” for the Duplicati service has to have access be a computer user that has access to the declaration of the mapped drive (though not necessarily the TARGET of the mapped drive).
When connecting to a local (or LAN) folder or drive, the TARGET of a mapped drive might require authentication (but have nothing to do with the local computer login) and that’s what the Username and Password are for in the “Backup destination” section of the Source setup.
