Hardware connection method: telephone line - cat - cat connected to the WAN port of the router - computer connected to the LAN port of the router. Configure the router. Log in to 192.168.1.1 or 192.168.0.1 on the web page and enter your username and password. Each router is different. You can read the instructions on the back of the router. After logging in to the router, set the router's Internet access method. Depending on the situation of your home, generally select the PPPOE method for dialing, fill in your Internet access account and password, save and then restart the router. In this way, the router will dial up by itself, and the computer will be able to access the Internet when it is connected without having to dial up again.