Access right setting method and access right setting system for use in area network

An access right setting method for use in an area network, the access right setting method comprising steps of:

• (A) allowing a server-side device of the area network to receive a first device search request from a first active control device of the area network, wherein the first device search request contains a first media access control address information of the first active control device;
• (B) retrieving the first media access control address information and storing the first media access control address information into the server-side device, and transmitting a first response message corresponding to the first device search request to the first active control device, so that a network connection between the server-side device and the first active control device is established;
• (C) setting a first access right information corresponding to the first active control device into the server-side device according to the first media access control address information and an operation of the third-party device;
• and
• (D) when a first operating request from the first active control device is received by the server-side device, allowing the server-side device to be operated in a first access right operation mode or a second access right operation mode according to the first access right information and the first media access control address information of the first operating request.