Password protection in wireless network is also very important part.You can protect your wireless network using password.Follow this blog-How to Password Protect a Wireless Network?
Step1: Connect your wireless router and open your Internet browser and enter the IP address assigned to your router. You should use proper IP address.
Step2: Log in to your router configuration by typing the username and password specified in your manual. For Linksys routers, leave the user name blank and type “admin” (without the quotes) in the password field and press enter. To change the password, simply click on the Password tab and enter your new password.
Step3: When you buy a wireless router, it comes with a default SSID that's the same for the thousands, or millions, of routers the manufacturer makes. Set your Service Set Identifier (SSID) by typing it into the box. This is the name of your wireless network. Make it a unique phrase; the default SSID is usually the name of the router manufacturer, such as Netgear or Belkin.
Step4: Set your wireless network's security protocol to WPA 2.0 -- Wi-Fi Protected Access. This encrypts any data sent over the network and allows access only to users who have the security key. Set your security key as something not easily guessed. A string of random numbers and letters is recommended. Be sure to record this security key in a safe place so you can recall it when adding a new device to your network or changing network security settings.
Most of the people across the world prefer to go for D-Link routers due to their easy setup and configuration .Setting your D-link router follow this article-Setting Up D-Link Routers
Note: If you are facing any problem on router then you can reach online technical support service desk of V tech-squad at their Toll Free No +1-877-452-9201.