I was recently adding an additional mapped drive to an existing GPO, but the drive would not appear no matter what changes I made to the various settings (Create/Replace/Update, adding a Delete first, setting this or all drives to show, etc). Frustrated, I started digging into the event viewer and found this error:
0x800708ca This network connection does not exist
I searched online for this error and kept finding results where people were trying to get rid of existing mapped drives but were unable to. This was the opposite of what I was after! Finally I ran across a forum thread where one of the troubleshooting steps a user mentioned was to check for spaces in the drive description. I didn’t have any spaces in the drive description, but that got me thinking. A quick glance showed the functioning drives paths did *not* end with a trailing slash, but the failing drive mapping did (see following example). I removed the trailing slash, ran
gpupdate on a computer, and the drive instantly appeared.