I have 2 computers linked by ethernet in my home. On the main computer I can see the secondary computer, but the desktop and documents folder on this are both ‘empty’ and not accessible. And those are, of course, the two I want to access on this computer from another floor of the house, so I can easily move files one to the other via drag and drop. Both run Ventura 13.6.7. I have done this in the past, but had discontinued it a year or so ago. Got a new mini and decided to resurrect this action, but doesn’t seem to work. It is probably (?) a permissions issue, but I am a naif with that. Suggestions?
Yes, it is likely a simple permission issue.
When you log in to the second machine with File Sharing you need to log in as a user/owner of those folders on the second machine.
There are other approaches, but that is probably the simplest.