Problems with rendering (buckets?) to render machines

[bnoo]

My situation: At work we have a workstation (64bit Win7)which runs Rhino 5.0 with VRay 1.5
We render a lot with this pc and bacause the renders took a long pretty long time, we decided to buy several render pc's (we first tested with another pc in the network (64bit Win7) and it worked fine.
After having a bit of trouble with our system managers, we bought 2 Win8 systems and connected them (including the workstation) on a separate network.

However, when running a test render, during the second phase we get black blocks. (only the blocks rendered by the 2 other systems though)
I've added as much images as possible to make it extra clear for everyone willing to take a look.
On the right is the XMLDRSpawner of one of the network pc's (vieuwed through teamviewer)

[corey]

Hello bnoo-

There are several images that failed to load from your S: and C: drives. It appears that asset collection is not working for you. Have you tried using a shared folder method?

Do the new machines have access to the drives that your maps are located on?

[bnoo]

My apologies for the late reaction, it has been kind of hectic around here.

I checked it again and it seems not all systems have access to the network,
this is not really strange because we have them on a separate network to keep the traffic off the normal network.

This is however why I choose the option "Send to each node", hoping this would work.

I have just created a shared directory on the the Rhino pc, which seems to solve this problem.
Not sure why I hadn't thought of sharing a directory on the pc itself before.. Thank you!