Provided are a system and method for automatically setting up configurations of a home network. The system includes a setting information manager, placed within an individual home, for collecting and managing setting information associated with configurations of the home network. The setting information manager shares the setting information with a remote setting information management server or another setting information manager. Since customized setting information of an individual home is shared, setting information of home network configurations can be effectively managed, thereby reducing costs and efforts required for maintenance and repair of the home network.