Desktop + wireless route configuration wifi hotspot condition: A networked desktop, a wireless router, a network cable, and an unconnected notebook step: 1) set the network share of the desktop to connect the desktop to the wireless router using a network cable (pay attention to the wireless route to connect the LAN port); Right-click "Network Neighbor" -- "properties"; select the connection that the current desktop can connect to the Internet, right-click "properties", click "advanced", and select "allow other network users to connect through the Internet connection of this computer ". Select the connection between the desktop and the wireless route, and set its IP address to the same CIDR block as the router. If the IP address of the router is 192.168.1.1, you can set it to 192.168.1.11. 2) the ip address of the wireless router is 192.168.1.1 or 192.168.0.1. Set the default gateway and DNS of the notebook as needed. Connect the notebook to the newly set wifi and set its default gateway and DNS as the ip address of the router. If you follow the settings in step 1, set it to 192.168.1.11.