IdeaPad Y400& Y500 Win8 Operation Guide for Wireless Restricted Problems

Problem Description:

Using Y400/Y500, pre-installed Windows 8 system, connected to home router AP, high probability of wireless appearance Restricted, unable to access the Internet, you need to reconnect to WiFi after the problem occurs, the network exclamation mark icon appears in the lower right corner. As shown below:

After analysis, the wireless network card configured by the user model is Broadcam 4313. This problem can be passed. Change the wireless network card properties to solve,

NIC and router compatibility and Microsoft's latest window 8 operating system caused such problems, not the machine's hardware failure.

Operation steps:

Step 1: Turn off the automatic power saving option of the wireless network card

Click <;Device Manager", select <;Wireless Network Card Properties&rdquo ;, click " Power Management" to remove the "Allow computer to turn off this device to save power" option, as shown below:

Step 2: Enable “Finance Information Processing Standard (FIPS) Compatible ”Enhance network compatibility

Right-click on the connected AP signal and select “View Connection Properties"""Security”“Advanced Settings&

Checkmark“ Enable Federal Information Processing Standard (FIPS) compatibility. If there is no such option, it is recommended to change the wireless router's encryption method

to AES encryption mode:

Step 3: Modify the wireless network card Compatibility mode

Select <;Device Manager", right click to select "Wireless Network Card Properties", click “Advanced", select “AP Compatibility Mode", set the value to “More extensive Compatibility & rdquo ;;

Step Four: Optimization of windows TCP configuration
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