Getting a 'resolution or bitrate has reached the limit' error when adding a camera to a recorder?

Question:

Getting a 'resolution or bitrate has reached the limit' error when adding a camera to a recorder?

Answer:

This error means that the recorder does not support the camera's resolution (too high), or the camera's bitrate will make the recorder exceed its incoming bandwidth limit.

To fix this issue, either lower the resolution of the camera, or lower the max bitrate (in kbps) of the camera you're adding or the cameras already added to the recorder.