Before completing please check that the time, date and timezone have been correctly set on the device running the Player.
To be completed by the original poster:
Please describe in detail the issue you are experiencing, including any errors shown on the Player Status page or in the Logs section of the CMS.
No errors showing in the log, trying to play an RTSP stream on a windows client. The client screen is just black. The RTSP stream was added to the CMS via HLS, and I have also tried local video, but that throws an error similar to seen here (No Video Windows Home 10 N)
Windows 10 Education is installed and has both Klite and VLC player installed. VLC can play the stream without any problems. The cameras all stream in h265. Also, we have the h265 codec installed on the clients.
Provide screenshots where possible!