Microsoft has resolved extreme lag and stuttering points with NDI streaming software program affecting Home windows 10 and Home windows 11 programs after putting in the August 2025 safety updates.
The corporate confirmed these issues after receiving widespread studies from customers who skilled a spread of efficiency points whereas utilizing varied streaming apps, together with OBS (Open Broadcast Software program) and NDI Instruments.
“Extreme stuttering, lag, and uneven audio/video would possibly happen when utilizing NDI (Community Gadget Interface) for streaming or transferring audio/video feeds between PCs after putting in the August 2025 Home windows safety replace,” it stated.
As Redmond defined on the time, the streaming points are triggered after putting in the KB5063878 and KB5063709 safety updates on Home windows 11 24H2 customers and Home windows 10 21H2/22H2 gadgets.
The NDI group additionally confirmed this subject, saying that the buggy Home windows updates may cause NDI site visitors to drop unexpectedly after deployment, with efficiency issues occurring “solely with RUDP connections, whereas site visitors despatched or acquired utilizing UDP or Single-TCP stays unaffected.”
On Tuesday, Microsoft launched the KB5065426 and KB5065429 to handle this identified subject on the 2 impacted Home windows variations.
“We suggest you put in the most recent replace to your system because it comprises essential enhancements and subject resolutions, together with this one,” Redmond stated. “When you set up an replace launched September 9, 2025 (KB5065429) or later, you do not want to make use of a workaround for this subject.”
NDI shared a brief workaround for individuals who cannot instantly deploy this month’s Home windows updates. This requires altering the NDI Obtain Mode to make use of TCP or UDP as a substitute of RUDP by putting in the free NDI Instruments pack and setting the ‘Obtain Mode’ choice to ‘Single TCP or UDP’ from the NDI Entry Supervisor app’s ‘Superior’ tab.
The September 2025 Patch Tuesday safety updates deal with one other identified subject launched by the August 2025 Home windows safety updates, which causes surprising Person Account Management (UAC) prompts and app set up issues for non-admin customers.
After releasing the August cumulative updates, Microsoft mounted one other identified subject inflicting safety updates delivered through Home windows Server Replace Companies (WSUS) to fail with 0x80240069 errors after putting in KB5063878.
One week later, it launched emergency Home windows updates to repair a identified subject that broke Home windows reset and restoration operations after putting in the KB5063875 (Home windows 11), KB5063709 (Home windows 10), and KB5063877 (Home windows 10 Enterprise) updates.
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