Just a quick heads up. Tonight I updated to the latest version of iTunes (v. 12.1) and low and behold it can access the iTunes server on my Live Hub again, :smiley:
I think this is the first time it has worked since about 2011 or so when Apple changed the iTunes protocol. After that it stopped working and whenever I loaded up iTunes and tried to switch to the Live Hub server library it would just load and load but never display the contents of the iTunes library I had on the Live Hub.
Update your iTunes to the latest version and see if it works.