wireless network adapter gone missing

Hi '

This just happened to me and I was able to get past it by doing several hard reboots. I had to fully charge the battery , and after three attempts with increasing intervals of time, the system appearently turned the wireless adapter back on.

After the card reappeared, I was able to find it in device manager again, in my case Intel(R) Centrino(R) Wireless-N 2200 under network adapters . Then a right click, to properties , within properties you chose power Management tab. There you will probably discover that by default the computer is allowed to turn off this device to save power. Uncheck the box , click ok and reboot . Hopefully this will prevent it from happening again.

Hope this helps

Art Master T

This same thing happened to me. What causes it to happen is a very low battery but found a simple solution to turn back on the wireless network adapter.

Hold down the Windows key and press x

menu should come up

click device manager

should go to a list of devices on your computer

expand network adapters from list

might be a few to choose from but look for 2 with the same name. one for wifi and one for ethernet

double click on the wifi network adapter

click on power management tab

click off the tab that allows the wifi to be turned off with low battery

click on drivers tab and enable device

should be good to go from there

Hi tucson56, A. From how long do you face this problem? I would suggest you to check for the power management settings for your wireless adaptor and see if that help. 1.Open Network and Sharing Center (click the Start button, type Network and Sharing in the Start Search box, and press Enter) 2.Click the Change adapter settings link in the upper left of the navigation pane. 3.Right click the network connection you want to enable/disable power management support on and click Properties. 4.Click Configure. 5.On the Power Management tab, check or clear the Allow the computer to turn off this device to save power check box. A. When checked, power management is enabled on the network adapter. B. When cleared, power management is disabled on the network adapter. 6.You can enable Wake on LAN for all wake methods or just enable magic packet WoL: To enable Wake on LAN for all methods, check the Allow this device to wake the computer check box. To enable Wake on LAN for magic packet only, check the Allow this device to wake the computer check box and then check Only allow a magic packet to wake the computer check box. 7.Click OK. Additional information:

http://technet.microsoft.com/zh-cn/library/ee617165(WS.10).aspx

Hope this helps. Let us know the results.

Thanks & Regards,

Vijay B – Microsoft Support

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