A communication device includes: a wired communication unit configured to communicate with an external device via a wired communication path; a wireless communication unit configured to communicate with the external device via a wireless communication path; and a communication control unit configured to select one of the wired communication unit and the wireless communication unit, and to cause the selected communication unit to communicate with the external device. The communication control unit includes a link information detecting unit configured to detect link information indicating whether the wired communication path is electrically linked up or linked down, and the communication control unit is configured to select the wireless communication unit and cause the wireless communication unit to communicate with the external device when, in a state where the wired communication unit is selected, the link information detecting unit detects a plurality of times that the wired communication path is electrically linked down.