Wireless network connection problem

Problem:
One user complains about network connection (WLAN).

Solution:
In our Sugar Mill, there is also Wireless Network available. We change our TP-Link wireless switch, according to our need, so I go to user computer and give it an IP address and change gateway as well. (Previously it has no IP address and it detects auto settings.)
Steps to give IP address and gateway:
Click on start menu Button

Click on Setting > Control Panel >

Double Click on Network Connections.

Right click on connection and click on Properties.

Select Internet Protocol (TCP/IP) and click on Properties.

First check on Use the following IP address and give your new IP address and Default gateway.

Now click on OK button.
You have done it.