"There is no CUDA device which is selected..."

[MichaelJeffreyVance]

I am trying to run Cinema 4D R20 on Windows 11 and when I try to render Octane in the Live Viewer I get this message" "There is no CUDA device which is selected..."

I tried installing the standalone version of Octane Render in hopes it might install the missing element but no luck. Any ideas? If I can't get it working I will have to revert to Windows 10.

Michael

It's a new Intel I7 computer with an NVIDA Geforce RTX 4070 ti graphics card.

[MichaelJeffreyVance]

Or is this not an OS issue at all but rather an issue with the graphics card I'm using being too new or something?

[MichaelJeffreyVance]

[bepeg4d]

Hi,
maybe your Nvidia driver is too old, try to perform a clean installation of the last Nvidia Studio driver, and report back, thanks.

To perform a clean installation, please follow these steps:


ciao,
Beppe

[MichaelJeffreyVance]

Thanks but I don't see the same options in the Nvidia graphics driver installer. Does it make a difference. I already installed this driver once. I installed it again with a clean installation and get the same result and pop-up saying "There is no CUDA device which is selected..."

Should I try installing an older driver such as the one in your screenshots?

[MichaelJeffreyVance]

By the way, I don't know if it makes a difference or could be related, but I had to create a rule in my Windows Firewall to block outgoing connections for Cinema 4D R20 because of the following situation posted by Maxon:

[bepeg4d]

Hi,
nope, the Firewall rule shouldn't be an issue, but it could be related to your license.

Please, write to help at otoy dot com, sharing your OTOY username, thanks.

ciao,
Beppe

[MichaelJeffreyVance]

OK. Message sent. Thank you.

Michael

[MichaelJeffreyVance]

I have an update. As I explained a little above, I am trying to use Cinema R20 on Windows 11, but R20 can't start up on Windows 11 unless a firewall Outbound Rule is used to block outgoing communication. Like this:

Now, apparently, Octane licensing has an issue with this because I get this popup error message from Octane while Cinema is starting up.

If I then disable the Outbound Rule that blocked communication and retry, Cinema starts and I am able to use Octane render without further error messages. (Yes this is progress from before!) The problem now is that if I quit and restart, I have to repeat the same sequence of disabling and then re-enabling the block rule every time, or I can't get past the Octane popup. Is there anything I can do? Is it normal that that Octane requires this communication/verification at startup every time?

[bepeg4d]

Hi,
you need the USB Dongle to avoid this:
https://home.otoy.com/render/octane-ren ... e/#dongles

ciao,
Beppe