RT Distributed Rendering not working

[dimension3plus]

Hey guys!
When using V-Ray Adv all of my render nodes work fine, but switching to V-Ray RT 3.50.04 none of my rendernodes are rendering (neither cpu nor gpu), only the host is. Error: Render host xxx disconnected.
I'm on 3ds max 2017. I have tried it several times, restarting all PCs, but nothing helped. Could you help me?
OS: Windows 10 creators update

Regards
Olaf

[matanov]

You are starting RT render server on the render nodes, right? Not DR spawner?

[dimension3plus]

Ups, yes, starting RT render server definitely solved my problem. Thanks.