While using wireless network some times it will show the following message
"Windows was unable to find a certificate to log you,on to the network [SSID]",and connection to the network fails. In such cases change the properties of wireless network in the following manner.
1.Click on Control panel from start menu.
2.Now in control panel click on Network Connections.
3.List of Networks will be visible.Select the wireless network concerned.
4.Right-click on the network and click on properties.
5.Wireless Network connection properties window will be opened.
6.Then Click on wireless networks tab in that window
7.Select the preferred network and click on properties of the preferred network.
8.Change the Network Authentication Select box value to "WPA-PSK" and Data Encryption as AES.
9.Enter the Network Key and confirm the Network key and click on Ok.
10.Now the wireless will be connected successfully.