RT: Failed to start network server error

V-Ray V-Ray GPU Issues
1

I am not able to run RT. My license for Vray is loading fine. But when I try to open up the active shade window, it says “waiting for image data…” and nothing ever happens. I opened up the V-Ray RT render server dialogue box and there is an error message that says "error: Failed to start network server: Failed to open listening port (10048 ) Exiting server mode.

I can render fine with Vray, but need to get my RT window working…help, I’m desperate.

2

It means that there is already another instance of the V-Ray RT render server running (probably it is registered as a Windows service).

Best regards,
Vlado

3

It’s running ok now in 3DS Max 2009, but I still get an error message in 2010. “Render host boxx-1 (127.0.0.1) disconnected error.”

4

I also have exactly the same problem on one of 9 render boxes:
error:Render host PCxxxx (ip) disconnected
The moment RT reports above error, RT render server reports “Closing DR session from ip” like when you normally close RT in max.

I tried all the usuall things but with no success. I am inclined to think that this problem is to do with some network settings (firewall is disabled btw).

It is maybe interesting to mention that this is the box that i can not connect to with dameware for whatever reason (error: multiple connection to a server or a shared resource by the same user name, not allowed)

I woud really appreciate any help with this also!

5

I have the same problem as you guys, with vray RT not starting anymore : always complaining that it cannot open listening port 10048.
The strange thing is that it happened suddenly. It was working ok, and then bam, nothing.
I tried restarting my computer, removing vrayRT as a service. But nothing helps.

6

Open the task manager, go to the “processes” tab, make sure that the “show processes from all users” option is enabled. Do you see vray.exe listed there?

Best regards,
Vlado

7

Ok, I tried a few things :
- I have indeed vray.exe running. If I shut it down, vrayRT still doesn’t work
- I tried creating a new scene with just a box, and vrayRT works fine
- I tried merging my project into that new scene, but then vrayRT doesn’t work anymore.

8

I spent the last couple of hours turning off objects of my scene one by one until I found the responsible : a simple plane with cutout people texture applied. Once deleted everything came back to normal. Very odd :slight_smile: