The present invention relates to a connection problem determination method and a connection problem determination apparatus for an image input device, and the connection problem determination apparatus, for an image input device, which includes: a network connection sensing unit which senses the network connection between a network video record system and a network-connectable image input device which provides a specific image; a timer which generates signals at regular time intervals in accordance with a clock pulse; a time delay measuring unit which measures a time delay on the basis of the signals from the timer if no network connection is sensed; and a connection problem determination unit which determines that there is a connection problem if the time delay is a predetermined threshold value or greater.