(In order to limit the number of access users, some broadband providers bind MAC addresses on the authentication server. At this moment, connect the computer whose MAC address is bound to the LAN port of the router (but the router should not be connected to the cable provided by the Modem or ISP), and then select the MAC address cloning function of the router to copy the MAC address of the network card to the broadband router. WAN port. Press "Preliminary → Office" under Windows2000/XP,)