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Troubleshoot multimedia redirection for Azure Virtual Desktop

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Important

Call redirection is currently in PREVIEW. See the Supplemental Terms of Use for Microsoft Azure Previews for legal terms that apply to Azure features that are in beta, preview, or otherwise not yet released into general availability.

This article describes known issues and troubleshooting instructions for multimedia redirection for Azure Virtual Desktop and Windows 365.

Known issues and limitations

Here are the current known issues and limitations for multimedia redirection:

  • In the first browser tab a user opens, the extension pop-up might show the message The extension is not loaded or a message that says video playback or call redirection isn't supported while redirection is working correctly in the tab. You can resolve this issue by opening a second tab.

  • Multimedia redirection only works on Windows. Any other platforms, such as the macOS, iOS, Android, or connecting to a remote session in a web browser on any platform, don't support multimedia redirection.

  • Multimedia redirection doesn't work as expected if the session hosts in your deployment block cmd.exe.

  • If you aren't using the default Windows size settings for video players, such as not fitting the player to window, not maximizing the window, parts of video players might not appear correctly. If you encounter this issue, you should change the settings back to the default settings.

  • If your monitor or browser scale factor isn't set to 100%, you might see a grey pattern appear on the video screen.

Known issues for video playback redirection

  • Video playback redirection doesn't support protected content.

  • When you resize the video window, the window's size adjusts faster than the video itself. You also see this issue when minimizing and maximizing the window.

  • If you access a video site, sometimes the video remains in a loading or buffering state but never actually start playing. For now, you can make videos load again by signing out of your remote session and signing in again.

Known issues for call redirection

  • Call redirection only works for WebRTC-based audio calls on the sites listed in Call redirection.

  • When you disconnect from a remote session, call redirection might stop working. You can make redirection start working again by refreshing the webpage.

  • If you see issues on a supported WebRTC audio calling site and enabled the Enable video playback for all sites setting in the multimedia redirection extension pop-up, disable the setting and try again.

The MSI installer doesn't install the browser extension

  • If the .msi file doesn't install the browser extension, you can install the multimedia redirection extension from the Microsoft Edge Store or Google Chrome Store. You need to use the following links as the extension isn't searchable:

  • Installing the extension on host machines with the MSI installer prompts users to either accept the extension the first time they open the browser or display a warning or error message. If users deny this prompt, it can cause the extension to not load. To avoid this issue, install the extensions by editing the group policy.

  • Sometimes the host and client version number disappears from the extension status message, which prevents the extension from loading on websites that support it. If you installed the extension correctly, this issue is because your host machine doesn't have the latest C++ Redistributable installed. To fix this issue, install the latest supported Visual C++ Redistributable downloads.

Getting help for call redirection and video playback

If you can start a call with multimedia redirection enabled and can see the green phone icon on the extension icon while calling, but the call quality is low, you should contact the app provider for help.

If calls aren't going through, certain features don't work as expected while multimedia redirection is enabled, or multimedia redirection doesn't enable at all, you must submit a Microsoft support ticket.

If you encounter any video playback issues that this guide doesn't address or resolve, submit a Microsoft support ticket.

Collect logs

If a web page isn't working as expected with multimedia redirection, you can collect logs to help troubleshoot the issue. To collect logs:

  1. Select the extension icon in your browser.

  2. Select Show Advanced Settings.

  3. For Collect logs, select Start.

  4. Reproduce the issue on the web page, then select the extension icon again and for Collect logs, select Stop. Your browser automatically prompts you to download one or more log files that you can save and use with support cases.

Next steps

For more information about this feature and how it works, see What is multimedia redirection for Azure Virtual Desktop?.

To learn how to use this feature, see Multimedia redirection for Azure Virtual Desktop.