Operation instruction of wireless restricted problem under IdeaPad y400&y500 Win8

Problem Description:

Using y400/y500, pre-installed Windows 8 system, connected to the home router AP, high probability of wireless restricted, unable to access the situation, there is a problem after the need to reconnect WiFi, the lower right corner of the network exclamation point icon. The following figure:

After analysis, the user model configuration of the wireless card is Broadcam 4313. This issue can be resolved by changing the wireless network card properties.

The compatibility of the NIC with the router and Microsoft's latest Windows 8 operating system have led to such problems, not the machine's hardware failure.

Operation Steps:

Step one: Turn off the automatic power-saving option for the wireless network card

Click "Device Manager", select "Wireless network card Properties", click "Power Management" to remove the "Allow computer to turn off this device to save power" option, as shown below:

Step Two: Enable Federal Information Processing standards (FIPS) compatibility to enhance network compatibility

Right-click on the connected AP signal, select "View Connection Properties" Click "Security" "Advanced Settings"

Check the "Enable Federal Information Processing standards (FIPS) compliant" figure below, and if not, it is recommended that you encrypt the wireless router

Change to AES encryption method:

Step Three: Modify the wireless network card compatibility mode

Select "Device Manager", right-click "Wireless Network Card Properties", click "Advanced", select "AP compatibility Mode", and set the value to "wider compatibility";

Step four: Optimize TCP configuration for Windows 8