ndi access manager

About this tag
The NDI Access Manager tag covers discussions about NDI (Network Device Interface) streaming issues triggered by the August 2025 Windows cumulative security updates (including KB5063878 for Windows 11). Users report severe stuttering, lag, dropped frames, and choppy audio/video in NDI-based workflows, particularly when using the default Reliable UDP (RUDP) transport. Microsoft has acknowledged the regression, and the community has identified a workaround: switching NDI receivers to Single TCP or UDP (Legacy) transport modes. Affected tools include OBS, NDI Tools, and similar capture stacks. The tag focuses on troubleshooting this specific Windows update-related NDI problem, with no coverage of other NDI features or general access management.
  1. NDI Stuttering After August 2025 Windows Update: Mitigation Guide

    Microsoft has formally acknowledged that its August 12, 2025 cumulative security update is responsible for severe stuttering, lag and choppy audio/video in NDI-based workflows on affected Windows 11 and Windows 10 builds, and vendors and community engineers have published an immediate—but...
  2. Windows August 2025 Update Triggers Severe NDI Stutter (RUDP)

    Microsoft has confirmed that its August 12, 2025 cumulative updates introduced a serious regression that causes severe stuttering, lag, and choppy audio/video in NDI‑based streaming workflows on affected Windows 11 and Windows 10 builds — a defect tied to NDI’s default RUDP (Reliable UDP)...
  3. NDI Streaming Breaks After August 2025 Windows Update: Fix by Switching NDI Transport

    Microsoft has confirmed that its August 2025 security updates can break NDI-based streaming on affected Windows PCs, producing severe stutter, dropped frames, and choppy audio/video when Network Device Interface (NDI) is used with its default Reliable UDP (RUDP) transport — a regression that...
  4. Windows 11 KB5063878 NDI Stuttering: Fix by Changing NDI Transport

    Microsoft has confirmed that the August cumulative security update for Windows 11 (KB5063878, OS Build 26100.4946) is causing severe stuttering, lag, and choppy audio/video when using NDI-based streaming flows — an issue that hits production tools such as OBS and NDI Tools and has forced...
  5. Windows 11 KB5063878 Breaks NDI Streams: Change NDI Receive Mode Now

    The August 2025 Patch Tuesday cumulative for Windows 11 (KB5063878) has introduced an unexpected and painful wrinkle for live broadcasters: NDI-based streaming through OBS and other production tools can stutter, lag, and drop frames — even on healthy networks — and Microsoft has acknowledged the...