A, Please make sure the keyboard protocol matches the camera protocol (Visca, Visca over IP, onvif, NDI, etc.);
B, Please make sure the protocol parameters match the camera protocol parameters (baud rate, device address, IP address, DNS, etc.);
C, If it is network control, make sure the IP address of the keyboard and the IP address of the camera are in the same network segment;
D, If it is network control, make sure the keyboard port is the same as the camera port.