Please refer the steps below:
The system will disable the video output signal when it detects non-HDCP compliant display(s) playing the HDCP video source. All the connected output displays must be HDCP compliant while the video source is HDCP compliant.
Please check the following:
Video Wall: 8 x 16.
Video Extender: Theoretically, 1000 are the most, as long as each Rx unit is assigned to an IP from 65534 IP.
There are three ways to convert the video source. One is to use DIP switch, while the other is to set VLAN port and go with HDMI splitter (matrix).


As for Test A
As for Test B

Please check the following: