V-Ray crashes on rendering start

[JuhaHo]

I wonder what is happening. When I start rendering V-Ray disappears immediately after the dialogue is is opened. No error messages It just disappears.

E: I found out, there's a log in the VBF. it says, "could not obtain a license. Chaos license server is denying access". What should I do?

[JuhaHo]

I reinstalled the license server. Now the rendering is working.

[JuhaHo]

Rendering is working, but V-Ray UI not. I can render, but I can't change V-Ray settings.

[hermit.crab]

Is the GUI license engaged? I recall you having a similar issue a while back.

[Vizioen]

Try reinstalling Vray License Server. https://download.chaos.com/api/v3/bu...&version=6.2.1