System setting up configurations of home network automatically and the method thereof

A system capable of automatically setting up configuration of a home network and a method thereof are provided to set environment setting of a home network by using shared setting information without help of a manager. A home network comprises a device(140), a network(130), an application service(120), a management system(110), a setting information manager(100) and an error manager(160). The setting information manager collects and manages home network environment setting information for automatic home network environment setting. And the setting information manager shares the setting information between a setting information management server(300) and the setting information manager. The error manager recognizes home network error. And the error manager notifies a user of the error.