A disclosed network communication device corresponds to IP communications and is capable of performing IPsec communication. The network communication device includes a setting unit configured to obtain and set an operation mode specified by an administrator user; a detecting unit configured to detect a communication error caused by an incorrect portion in an IPsec setting; and a changing unit configured to change the IPsec setting, based on the operation mode set by the setting unit, to correct the incorrect portion or to cancel the IPsec communication, in the event that the communication error is detected.