I realize this is an old thread, but I came across your post when this just happened to me after recently updating to PD 12.1.0 (41489). I was toying with a Powershell script to unmount and remount a specific \\Mac share as a network drive. I noticed after rebooting none of the drives remounted as expected. However, when I went to manually add the network drive, I noticed the one I was trying to get to work was already in the list, yet inaccessible to me. So, I used the following command:
Code:
NET USE {{DRIVE_LETTER}} /delete
and it cleared it up for me and the auto-mount started working. My guess, it was writing something to the registry because I wanted the drive mapping to "persist" (the remember checkbox in the dialog) and that messed up the smart mount.