Desktop shared laptop Wireless Network (only one network cable is needed) I. Laptop settings: 1. first, share the wireless connection of the notebook to the wired network card, place the mouse over the network neighbor of the desktop, right-click the mouse, select properties, and then place the mouse over the wireless connection, and then right-click the mouse, select properties. In the pop-up window, click advanced at the top and check before allowing other network users to connect to the computer through the Internet connection (N, open home network connection (H): select local connection from the drop-down menu below, and then click OK. 2. record the information of the wireless network card for ease of use when setting the desktop. Return to the desktop, place the mouse over the network neighbor, right click, select Properties, place the mouse over the wireless connection, right click, select status, select support, and then select details (D) ..., Write down some useful information about the wireless network card, such as IP address 192.168.1.105, default gateway 192.168.1.1, and DNS server. Close and then close. 3. set the IP address and other information of the wired network adapter and return to the desktop. Place the mouse over the network neighbor, right click the mouse, select properties, and place the mouse over the local connection, right-click a property and choose "O" from the shortcut menu to use the following items: Pull the slider below to the end, Click Internet Protocol (TCP/IP), and select "use IP address (S) :, set the IP address to be different from that of the wireless network adapter (that is, the third digit of the IP address). Here I set it as follows: IP address (I): 192.168.2.1, subnet Mask (U): 255.255.255.0. Do not set the remaining, and then confirm. So far, all operations on the notebook have been completed. 2. desktop settings (relatively simple): place the mouse over the network neighbor on the desktop, right-click the mouse, select properties, and then place the mouse over the local connection, select properties, use the following items (O) to connect to the connection: Pull the slider below to the end, Click Internet Protocol (TCP/IP), and select use the following IP address (S ):, set the IP address to be in the same network segment as the wired network card of the notebook (that is, the first three of the IP addresses are the same). The Gateway is set to the IP address of the wired network card of the notebook, IP address (I ): 192.168.2.100, subnet mask (U): 255.255.255.0, default gateway (D): 192.168.2.1, fill in the following space for the DNS server information of the wireless network card on the previously viewed notebook: preferred DNS server (P): 192.168.2.1. You can leave this field empty for the backup DNS server (P). Then, click OK. Finally, connect the notebook to the desktop with a common network cable. As long as the laptop can access the Internet, the desktop can access the Internet.