Traffic Drops After Windows Update

On August 12, Microsoft released updates for Windows 10 and Windows 11 (all versions, KB5063709 and KB5063878) that modify the Secure Boot certificate. However, many users have reported that these updates also introduce an unintended issue, that NDI traffic may drop unexpectedly.

Our testing shows that the problem only affects NDI traffic sent and received via RUDP. Connections using UDP or Single-TCP are not impacted.

As a temporary workaround, if you experience this issue, open Access Manager on your Windows PC and change the receive mode to either Single TCP or UDP.