network transport

About this tag
The network transport tag on WindowsForum.com covers discussions about the impact of Microsoft's August 2025 cumulative updates on NDI-based streaming workflows. Specifically, the updates introduced a regression affecting NDI's default Reliable UDP (RUDP) transport, causing severe stuttering, dropped frames, and choppy audio/video on Windows 11 and Windows 10. Users and vendors have documented a workaround that involves switching NDI receivers to Single TCP or UDP (Legacy) transport modes while Microsoft investigates a permanent fix. The tag focuses on network transport protocols, Windows updates, and troubleshooting streaming issues.
  1. Windows 11 August Update Breaks NDI RUDP: Quick Broadcaster Fix

    Microsoft’s August cumulative update for Windows 11 has introduced a painful wrinkle for broadcasters and multi‑PC streamers: NDI‑based feeds using the protocol’s default Reliable UDP (RUDP) transport began exhibiting severe stuttering, dropped frames, and choppy audio/video, forcing producers...
  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 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...
  4. 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...
  5. 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...