When a website hosting a .mp4 video stream is redirected to client machine though Browser Content Redirection, the video playback works fine while the audio playback doesn't take place at all (no sound). The issue doesn't occur in CWA for Windows 2311 release and starts to occur since 2402 release.

An audio codec change since CWA for Windows 2402 release caused the audio playback failure of a MP4 video in Browse Content Redirection use case.

A fix has been made to address the issue, which has been available since CWA for Windows 2402 LTSR CU3 and CWA for Windows 2503 (CR).

• Audio playback of an .mp4 video stream redirected through BCR might not work as expected. [CVADHELP-26911]

The article describes a audio playback no sound issue in Browser Content Redirection use case, which has been addressed by a bugfix in later CWA for Windows releases.