>> FDResPub <<
The problem seemed to have cured itself, but it's back.
I turned on all of the services listed in the response on the first page of this (very long) thread, but that didn't work.
So, I set up a task scheduler event for FDResPub as suggested in the above post, but, it does not work, including restarting the computer.
fwiw, when I was presented with a login credential screen with my current login as the user, but, when I filled in the password, I received the message that "The specified Account name is not valid"
Turns out that you have to manually add the <computername><username>
Note
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I just purchased a second Win10 computer for my wife, and confirmed that the problem is the same with that computer as well. Again, I can connect to this Win8.1 computer using another Win8.1 computer on the same network.
Help (again)
Beverly Howard