I did disable the Firewall and then went through the tabs, (Domain Profile - Private Profile - Public Profile) as a process of elimination.
The results are as follows.
I can copy and paste from that machine, if:
All tabs are in the "Off" position.
Or, if the "Domain Profile and Private Profile" are "On" and the, "Public Profile" is "Off."
So, by process of elimination, the issue is with the "Public Profile."
My next question is, "How do I fix this?