An information processing apparatus comprising: a setting unit configured to set a setting for an interface to be enabled in the information processing apparatus in accordance with an instruction by a user; and characterised by a determination unit configured to determine whether or not an IP address assigned to the interface set to be enabled matches with an IP address of another apparatus on a network in which the information processing apparatus exists; a display control unit configured to display an error information on a display device, wherein the setting unit is configured to set statuses of a wired interface and a wireless interface as any one of followings: a first setting for enabling the wired interface without enabling the wireless interface, a second setting for enabling the wireless interface without enabling the wired interface, and a third setting for enabling both the wired interface and the wireless interface, the display control unit, after the third setting is set by the setting unit, according to a fact that the determination unit determines that the IP address assigned to an interface set to be enabled matches with the IP address of the another apparatus on the network, is configured to display error information including information indicating a type of the interface having the assigned IP address which is determined to be matching with the IP address of the another apparatus and information indicating a fact that there is a matching of IP addresses, on the display device, and the display control unit, after the first setting or the second setting is set by the setting unit, according to a fact that the determination unit determines that the IP address assigned to the interface set to be enabled matches with the IP address of the another apparatus on the network, is configured to display error information excluding information indicating the type of the interface having the assigned IP address which is determined to be matching with the IP address of the another apparatus and including information indicating a fact that there is a matching of IP addresses, on the display device. a setting unit configured to set a setting for an interface to be enabled in the information processing apparatus in accordance with an instruction by a user; and characterised by a determination unit configured to determine whether or not an IP address assigned to the interface set to be enabled matches with an IP address of another apparatus on a network in which the information processing apparatus exists; a display control unit configured to display an error information on a display device, wherein the setting unit is configured to set statuses of a wired interface and a wireless interface as any one of followings: a first setting for enabling the wired interface without enabling the wireless interface, a second setting for enabling the wireless interface without enabling the wired interface, and a third setting for enabling both the wired interface and the wireless interface, the display control unit, after the third setting is set by the setting unit, according to a fact that the determination unit determines that the IP address assigned to an interface set to be enabled matches with the IP address of the another apparatus on the network, is configured to display error information including information indicating a type of the interface having the assigned IP address which is determined to be matching with the IP address of the another apparatus and information indicating a fact that there is a matching of IP addresses, on the display device, and the display control unit, after the first setting or the second setting is set by the setting unit, according to a fact that the determination unit determines that the IP address assigned to the interface set to be enabled matches with the IP address of the another apparatus on the network, is configured to display error information excluding information indicating the type of the interface having the assigned IP address which is determined to be matching with the IP address of the another apparatus and including information indicating a fact that there is a matching of IP addresses, on the display device.