To provide a method, a system and a program for retransmitting update data from a remote site when a failure occurs halfway through transmission of update data of firmware for peripheral equipment such as a printer connected to a communication network.

A computer 11 or the like receives, when a transmission error occurs for the update data, data reporting the transmission error from the peripheral equipment (printer 13a1 or the like), cancels transmission of remaining predetermined transmitting records for the update data, and transmits a command for resetting the peripheral equipment (printer 13a1 or the like) to the peripheral equipment (printer 13a1 or the like).