I've been struggling for two days now and I'm kind of desperate.
Recently I've moved my renderfarm to new workshop, where I have a different main PC (workstation). I've plugged all my nodes (11) to network and then it started.
At first I saw all icons with red squares. But fixed that quickly - it was Windows Firewall. Added exceptions and it worked. Now all nodes are green and turn orange. Nice! :)
However, I can see all of the nodes rendering, the logs suggest they do, but only one delivers the frames to the workstation.
I haven't changed the settings on client, it's certainly the same version of C4D R20, even brought my router that it worked on, but no luck.
I have no idea what's going on and it's insanely disturbing. Any help would be highly appreciated!