Cannot turn on WIFI on Thinkpad E420

[606octranspo]

Hi,

I recently changed my windows from XP to 7. I usually use the LAN to access internet, but realised after switching to Windows7 I cannot turn on the wireless capability (this is what it says to do on troubleshooting). The F9 key doesn't work anymore, which used to do on xp and the window like the one on http://forums.lenovo.com/t5/ThinkPad-Edge-Knowledge-Base/Is-there-a-wifi-switch-on-Thinkpad-E420-or-... doesn't appear anymore. All other keys like brightness and volume control work. Things I have already tried are:-

 1.) Installed the latest drivers from the lenovo support for hotkeys integration and system interface.

2.) Installed the proper WLAN drivers (It also shows the wireless networks symbol on the tray, but cannot discover any networks since the wifi isn't turned on).

Plese help me.

[tanujhanda Retired Partner]

Hello 606octranspo and welcome to community,

Kindly update the BIOS and reinstall Power Management software and ThinkPad Power Management Driver

BIOS Update Utility for Windows 7 (32-bit, 64-bit), XP

BIOS Update Bootable CD for Windows 7 (32-bit, 64-bit), XP

Restart the laptop and then press F9 key and check. Kindly check does the wireless lan card detect in device manager.

Best Regards,

Tanuj

[megatanker454]

You need to reinstall the Wlan drivers