Open the computer's browser, enter your router's address, usually 192.168.1.1, and enter your username and password
Now go to the router's Settings page and down, locate the WAN Status window and note the data displayed.
Note All connected clients in the left host State
Open the IP and Mac Bindings tab on the left. and enable ARP binding.
Select the following add a single entry, one by one, just write down the client MAC address and IP address binding, the increase is completed, select the System tool on the left, restart the route
Click on the bottom right corner of the network icon
Access network and Sharing Center, choose to manage wireless network
To change the properties of a wireless network connection
Change the properties of the Tcp/ipv4.
Set the fixed IP just set in