Thanks for the reply Vlado.
I did install the render slave version of Vray on my slave machine. I also did put the correct IP address. I left the connection port to its default 30304.
I don’t understand why the slave machine is found at the beginning of the rendering, but after a few seconds the slave machine thinks the render is completed, then it does not respond anymore. I never had this problem before (as I said, I setup DR on max 7, 8 and 9 with no problem…).
I’ll try to re-install vray on my slave machine. If you can think of something else in the meantime, I would really appreciate!
thanks again!