PROBLEM TO BE SOLVED: To perform efficient monitoring of communication.SOLUTION: A wireless network monitoring device includes: a channel setting unit which sequentially sets a monitoring object channel for monitoring communication from a plurality of channels on a wireless network; a monitoring time setting unit which, based on a state of the communication monitored in the past by the monitoring object channel, sets the monitoring time monitoring the communication for every sequentially set monitoring object channel; and a communication monitoring unit which monitors the communication about the sequentially set monitoring object channel with the set monitoring time.
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