Please note that most versions of AirServer do not support any DRM protected content.
The AirServer Connect hardware has support for DRM protected content using Cast from apps. See: https://support.airserver.com/support/solutions/articles/43000512459-airserver-connect-hardware-network-and-security-information#Cast-from-non-mirroring-apps
If you receive error code 12643 or -12936, it is because the app is using an unsupported type of live-streaming encryption. Some Windows users may see a “Direct Show cannot play this video” message in this case.