u/nutella4eva

I'm at a complete loss trying to get NDI screen capture to appear on one of my PC's.

Setup:

• Streaming PC: RTX 5070Ti + 5950X — Running Studio Monitor
• Gaming PC: RTX 5090 + 9950X3D — Running Screen Capture/HX
• Backup PC: RTX 3080Ti + 299WX — Running Studio Monitor

I am trying to capture my Gaming PC on my Streaming PC. They are both connected to the same 2.5GbE network switch.

I am running NDI Screen Capture/HX on my Gaming PC, but no matter what I do, NDI Studio Monitor only shows a black screen on my Streaming PC.

• Gaming PC can see feed locally via Studio Monitor
• Backup PC can see feed via Studio Monitor
• Streaming PC can NOT see feed via Studio Monitor
• NDI Test Pattern on Gaming PC produces the same results
• Tried OBS + DistroAV — all sources are black
• Tried Screen Capture on Backup PC — Streaming PC can NOT see the feed via Studio Monitor
• NDI Screen Capture high bandwidth and HX are both the same result, no matter the resolution/framerate
• Enabling KVM works — even though the screen is black
• With NDI Screen Capture HX, I repeatedly get connection notifications in Windows
• Turning off my firewall does not fix the issue
• Networks are all set to private

I ran a quick NDI Analysis and it confirmed that my video/audio connection are repeatedly opening/closing

C:\Program Files\NDI\NDI 6 Analysis\x64>NDIAnalysis.exe /source:"NUTTYHQ (Test Pattern)"
NDI Analysis v6.3.2.0
Copyright (C) 2023-2026 Vizrt NDI AB. All rights reserved.

NDI version : 6.3.2.0

04:12:56.365: Video receiver creation succeeded.
04:12:56.365: Audio receiver creation succeeded.
04:13:00.369: Audio connection opened.
04:13:00.369: Video connection opened.
04:13:00.383: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.387: Video connection closed.
04:13:00.482: Audio connection closed.
04:13:00.540: Video connection opened.
04:13:00.547: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.553: Video connection closed.
04:13:00.636: Audio connection opened.
04:13:00.683: Audio format changed. 48000Hz, codec=NewTek Mode 0, 4 channels.
04:13:00.706: Video connection opened.
04:13:00.710: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.712: Video connection closed.
04:13:00.782: Audio connection closed.
04:13:00.864: Video connection opened.
04:13:00.868: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:00.873: Video connection closed.
04:13:00.934: Audio connection opened.
04:13:01.025: Video connection opened.
04:13:01.029: Source is using NDI 6.3.2.0 on the WIN64 platform.
04:13:01.031: Video connection closed.
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