Microsoft’s August 2025 Patch has proven to be a challenging chapter for the tech giant, as it grapples with the fallout from over 100 vulnerabilities, including a notable zero-day exploit affecting Windows Kerberos. Users have reported significant performance declines in various streaming applications, particularly OBS (Open Broadcaster Software) and NDI Tools, since the update’s deployment.
Performance Issues and User Experience
In a recent communication, Microsoft acknowledged that the latest update has led to widespread issues characterized by severe lag and stuttering during streaming sessions. The company specifically noted that these problems arise when utilizing the Network Device Interface (NDI) protocol, which is essential for transmitting high-definition video with minimal latency.
According to Microsoft, “Severe stuttering, lag, and choppy audio/video might occur when using NDI for streaming or transferring audio/video feeds between PCs after installing the August 2025 Windows security update.” This acknowledgment sheds light on the frustrations faced by users in the video production and broadcasting sectors, where reliability and performance are paramount.
- NDI is widely recognized for its ability to deliver high-quality video over computer networks.
- The issues appear to be particularly pronounced when ‘Display Capture’ is enabled on the source PC.
The NDI team has also confirmed a noticeable drop in traffic following the problematic update. The root of the issue seems to be linked to the Reliable User Datagram Protocol (RUDP), which is the default communication method for NDI. Performance degradation is observed exclusively with RUDP connections, while traffic transmitted via UDP or Single-TCP remains unaffected.
As users seek solutions, Microsoft has suggested a few potential workarounds, although a definitive fix may take some time to implement. The situation underscores the complexities of software updates and the ripple effects they can have on user experience, particularly in specialized fields like streaming and broadcasting.
