If you have a laptop in your hand that can be connected wirelessly, and your desktop doesn't have a wireless card, and you happen to find an idle cable, you can still use your desktop to share your laptop's wireless network.
Connect your laptop to a desktop computer with a network cable;
In your laptop, set the IP address of the wired network card to 192.168.0.1, the subnet mask is 255.255.255.0;
In your laptop, right-click the wireless card click Properties , switch to the Sharing tab, tick allow other network users to connect via this computer's Internet connection , and select Ethernet in the home network connection (that is, your wired network card), as shown in the following:
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In your desktop computer, set to automatically obtain an IP address, automatically obtain the DNS server address;
At this point, your desktop computer can also surf the Internet.
This article is from "Tian Cai" blog, please be sure to keep this source http://tiancaihaotian.blog.51cto.com/10436126/1740121
Set up a laptop and desktop network share