Rendernode not working anymore

since today my rendernode does not work any more.

my license server 5.12 is running …online and dongle is green … it tells me that no rendernode is in use

i can send a scene via backburner to the rendernode and it renders
i can render a scene on directly my rendernode and it renders

but i can not perform a distributed render
>>> errror: renderhost disconnected by client

VraySpawner is manually started on the rendernode

somehow the rendernode can not communicate with the server

VrayNext 4,02.05, 3ds Max 2019 latest, win 10 latest,

Can you send us vraylog.txt (located in %temp% folder) files from your workstation and the problem node on support@chaosgroup.com? When you do -please indicate which file is from which machine.

… after a complete reinstall of vray/phoenix/etc. on both machines everything works fine again.

next time if i run into a problem like this i know its faster this way the … hard way …

but thanks anyway Ivan