Miracast not working on Surface Hub 3 (Windows 11 IoT mode)

Hi everyone,

we’re currently experiencing issues with Miracast on our Surface Hub 3 devices when running in Windows 11 (IoT) mode.

As far as we recall, Miracast used to work correctly in Windows 11 mode without any issues. We are also aware of the planned rollout for this functionality in MTR mode around May 2026. However, since this was already working for us in W11 mode, we’re wondering if something has recently changed that could have impacted this behavior.

So far, we’ve tried all the usual troubleshooting steps, including:

- Device reboots

- Policy/configuration checks and changes

- Full device reinstallation

Unfortunately, none of these actions resolved the issue.

Has anyone experienced something similar or is aware of recent changes that might explain this?

Thanks in advance,

Andrea