V-Ray for Blender ...just doesn't work

[Edward_007]

SOLVED

Hi,

I have installed Licence Server cgls_win_5.2.2, Standalone vraystd_adv_41003_x64_vc14 and Blender with V-Ray vrayblender35-2.79-2901eb7-x86_64-windows
I can see my licence is online and available on http://localhost:30304/
I have activated the V-Ray render addon in user Preferences in Blender.
Switched to the V-Ray rendering engine and when I press F12 to render nothing happens. No popup, no error message, nothing.
When I change the render to show in Image Editor, I can see the checker pattern suggesting that the image is empty. I deleted everything in the scene and added the monkey, light and a camera. Nothing.
I've relogged from Licence server, webpage and restarted the computer, reinstalled standalone and Blender.

I am out of ideas what could be wrong and I am already two hours into trying to make it work.

Please help.

EDIT: I was running it on this computer before the Win 10 reinstall with no problems.

[andybot_cg]

Did you toggle the system console? (Under the Window menu) That will be where you get information about what is running when you try and start a render.

[Edward_007]

Thank for the tip. I did complete reinstall (again) this morning and got it to work twice. Then it stopped and the render window doesn't pop anymore.

In the console I am getting "error: Could not obtain a license (-9: There are no available licenses of this type on the ChaosGroup License Server."

Here is a log from the console after one (I think) successful attempt and then successive failed attempts.

https://pastebin.com/44Pc9trc

It's starting to look like a firewall issue, but I am using standard windows firewall, defender and I have disabled Firewall on my router (ISP modem is disabled so it's my router who is setting the rules). Adding rules or disabling firewall + Antivirus didn't help. I have a client waiting for renders and they needed to be ready yesterday.

[Edward_007]

Solved.

For those with the same issue: The problem was that I downloaded latest version of the standalone (NEXT) but I own only the previous version. Their download section is allowing you to download everything, so make sure you choose the (possibly older) version you own.

[andybot_cg]

Ha! After reading the log I was going to suggest checking if the previous version of Standalone will work. Glad you figured out the issue.