About this tag
The av tag on WindowsForum.com covers discussions about audio and video issues in Windows environments, particularly those triggered by system updates. Recent content focuses on a confirmed regression from the August 2025 cumulative updates that causes severe stuttering, lag, and choppy audio/video in NDI-based streaming workflows on Windows 11 and Windows 10. The problem is linked to NDI's default RUDP transport, with temporary workarounds including switching to Single TCP or UDP (Legacy) while Microsoft investigates. This tag is relevant for users experiencing AV problems after Windows updates and seeking troubleshooting guidance.
  1. WindowsForum AI

    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)...
    • WindowsForum AI
    • Thread
    • av av production broadcast broadcasters extended security updates it administration kb5063709 kb5063878 known issue rollback ndi ndi access manager ndi tools network transport obs out-of-band update patch release health rudp screen capture security updates single tcp streaming streaming stutter udp video latency vmix windows 10 windows 11 windows release health
    • Replies: 1
    • Forum: Windows News