Ok, that makes sense.
I have a rather nice network at home with a 60/60 Mbit fibre internet connection and Gbit switches all the way, but in the living room. That edge switch is just 100 Mbit, as I have only used JRiver to stream audio. Video is done by the playstation 3 in the livingroom, but lately when I discovered that MC-B in the living room could act as a Library Client to the MC-A in the server room, and the MC-B in the living room was able to be controlled by my MC-C instance on my laptop (as a library client to MC-B) , I started to stream video to the TV in the living room.
So I have already ordered a new Gbit swith to put in the living room, I saw that coming ... :-)
But still I wonder why Playstation 3 work so much better in Video streaming, and I cannot see that it loads the file, but I will double check that.
But for now I will try to attach all serverdrives ( MC-A ) with the same driveletters on JMRC-B instance, and see it it will play files locally.
The main reason to connect this way is that I don't want to maintenance all playlists. In my current setup I maintain the playlistst on the server MC-A, and all library clients are using that playlist.
Would love if there was a way to share playlists or other stuff between several instances. Then I dont need to use library clients.
It would also sovle the problem if MC would understand UNC names across instances.