[Isaac Sim] ZED Camera streaming error: failed to create RTP Session (err:-74) on Windows 11

Software
1

Hello all,

I am currently trying to set up the ZED camera in NVIDIA Isaac Sim using the zed-isaac-sim extension (specifically the main branch from GitHub).

After completing the setup steps and pressing Play in Isaac Sim, I encountered the following error messages in the console, and the stream fails to start:

2026-02-26T06:57:14Z [256,370ms] [Warning] [sl.sensor.camera.plugin] [ZED] IPC mode is not available on Windows. Switching back to network streaming...
2026-02-26T06:57:14Z [256,370ms] [Warning] [sl.sensor.camera.plugin] Initializing streamer with ID 109 on port 30002
[Streaming] Use Transport layer mode : 0
[Streaming] Error: failed to create RTP Session (err:-74)
2026-02-26T06:57:14Z [256,370ms] [Error] [sl.sensor.camera.plugin] Error during zed streamer initialization 0

My Environment:

  • OS: Windows 11 Pro
  • Isaac Sim Version: 5.1.0
  • ZED SDK Version: 5.2.0
  • zed-isaac-sim Branch: main

Does anyone know how I can fix this?

Thanks!

2

Hi,

Can you share your GPU driver ? It seems there is a bug with most recent GPU drivers preventing the usage of hardware encoding in the ZED SDK.

From my tests, using an older version fixed it (v581.80 should work).