Connection method for wireless system

A connection method for a wireless system, wherein the wireless system includes an access point, an electronic device, a relay device and at least one appliance;

• the electronic device and the relay device are connected to the access point, respectively;
• the relay device is connected to the appliance via signals;
• the relay device is adapted to send control commands to the appliance;
• the connection method for the wireless system comprises the following steps:
• A. sending a connection request command to a default IP address from the electronic device through the access point for at least one time;
• and
• B. determining whether a connection-successful information is received from the default IP address or not by the electronic device:
• if a connection-successful information is received from the default IP address, establishing a connection between the electronic device and the relay device;
• if a connection-successful information is not received from the default IP address, sending at least one connection request command to at least one different IP address in the same local area network from the electronic device through the access point;
• establishing the connection between the electronic device and the relay device when the connection-successful information is received from the at least one IP address.