An apparatus for connecting to an update server includes an update unit configured to connect to the update server over a network using a pre-stored domain name address of the update server and an IP address acquisition unit configured to acquire an IP address of the connected update server. The IP address acquired by the IP address acquisition unit is stored as a trusted IP address in a storage unit. The apparatus further includes a reconnection processing unit configured to fetch the trusted IP address of the update server and try connecting to the update server using the trusted IP address in the case of failure to connect to the update server using the pre-stored domain name address.
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