DR - Fails to save complete scene on slaves

Hi,
we have issues with rendering large scenes via DR - if we render it on just any slave, it works perfectly, but as we add more slaves to render, the vray_server_scene.max isn`t saved whole on all slaves and DR report that slaves haven`t received the scene. In Resource Monitor in Vista we see that the vray_server_scene.max is continously saved on slave’s 3ds temp directory, but never reach its full size, it stops randomly - around 2/3 of its size and then in Resource Monitor the file size is decreasing to zero.

- all machines have enough space on hdd
- the network is connected through 100 Mbps switch, and every slave have full unrestricted connection between them ( they have opened all ports, can be sucesfully pinged between each other )
- machines specs : Vista x64 SP1 on 2x 8GB RAM & Intel Q6600, 6GB RAM & i7 920

So far,
murko

Hm, looks like something interrupts the network connection between the machines. Do you use static or dynamic IP addresses in your network?

Best regards,
Vlado

Dynamic, for information - the switch is OvisLink LIVE-FSH16T+.

The IPs aren`t changing, as machines got exact IP everytime according to port on that switch they`re plugged in.

New issue - if i connect directly two machines via ethernet cable, assign static IPs, the server sent scene to slave correctly, in “vray messages” are reports of succesful scene transfer to slave & “scene loaded, started rendering”, and after that the slave never participate on rendering, nor in prepass, nor in beauty mode.

Screenshot from “vray messages” in attachment.

i used to have this bug once…the render was flagged finished just after its start on the slaves…
i started from scratch in a new scene and merged only geometry from the buggy scene… it worked. i never understood what happened.