Okay, now you're starting to lose me, or scare me, or both.
My daughter's machine went to sleep, so it's not showing on my shared list; and believe me, this partition knows nothing about the other partition, although I do have public folders available to both sides. But considering that I have to re-boot to switch partitions, I could bet a dime or two that that's not the problem.
I was programming mainframes for about 50 years and got out just when client-server got popular, so I don't talk about them very easily. What do you mean here?
If you mean clicking on the name under Sharing, I get "Connection failed".