Forum Discussion
Screen Mirroring (wireless casting) on TV stopped working
Hello, for the last month or so wireless casting (Windows key + K) on our Samsung TV stopped working with all our Windows 11 laptops (we have 70). However, it's still working with a Windows 10 laptop...
This was puzzling us too for a while with our corporate clients. In our case, we created a custom rule to allow wudfhost.exe access in the Firewall Windows default policy in Microsoft Defender.
https://security.microsoft.com > Endpoints > Device configuration > Firewall > Firewall Windows default policy
Create a custom rule allowing %systemroot%\system32\wudfhost.exe