Windows Wireless LAN 802.11 Extensibility Framework using too much CPU power

Anonymous
2014-03-25T22:05:49+00:00

Recently, my computer's been running significantly slower. A quick look at my task manager showed me that the "Windows Wireless LAN 802.11 Extensibility Framework" was using up 40+% of my processing power, and I have no idea why or how to reduce it. I'm fairly certain it's doing things it shouldn't be doing, but again, I have no idea what to do. Any help would be greatly appreciated!

Windows for home | Previous Windows versions | Performance and system failures

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Anonymous
2014-03-26T10:37:37+00:00

Hi,

The Windows Wireless LAN 802.11 Extensibility Framework provides an interface to Windows wireless security and connectivity features for the drivers of wireless network adapters.

Let’s try these methods and check if it fixes the issue.

Method 1: Run System Maintenance troubleshooter and check.

a) Press Windows and X key together and select Control Panel.

b) Click on Troubleshooting.

c) Click on View all option on the left side of the Windows.

d) Click on System Maintenance option.

e) Click on Next and follow the onscreen instructions to troubleshoot the issue.

Method 2: C heck the functionality in safe mode with networking.

Step 1: Start your computer in safe mode with networking and check the CPU usage.

Refer this link to start the computer in safe mode.

http://windows.microsoft.com/en-IN/windows-8/windows-startup-settings-including-safe-mode

If it works fine in safe mode with networking, let’s place the computer in a clean boot state.

Step 2: Perform clean boot.

Clean boot will help us identify if any third party applications or startup items are causing the issue.

To do this, follow steps from this link:

http://support.microsoft.com/kb/929135

**Note:**After checking the functionality in clean boot, follow the suggestions under “How to reset the computer to start as usual after troubleshooting with clean boot”.

Keep us updated with the status of the issue to assist you further.

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  1. Anonymous
    2014-12-25T23:16:03+00:00

    Hi All,

    Having suddenly the same issue as the other people in this thread. As a IT Pro I've dug in a little deeper. Here are my findings:

    1. HP Elitebook 840 G1 (Core i7 Haswell ULT) using the same Intel AC-7260 Wifi Card.
    2. Windows 8.1 Pro with all updates installed (SFC Checked ok, Dutch localisation, all the latest updates from HP installed)
    3. Problem keeps turning back when resuming from hybernation
    4. not done yet.

    Checked out de version of Wlanext.exe (the executable responding for the high utilization; on my system it took a whopping 48%!) and its version is 6.3.9600.17415, Dated 29-10-2014.

    Installed the DBG tools and took a look at the process "wlanext.exe" with my favorite tool Process Explorer. There were 2 mayor threads with de module "MSVCR110.dll" causing the high utilisation. When killing those 2 threads; the utilization immediatly went back to normal. Did not find out where this proces was started from. Autoruns nor Registry gave me any clues regarding this executable. The MSVCR110.dll

     file is from MS Visual Studio 2012, version 11.0.51106.1 dated 5-11-2012 (it's in fact the SP4 udate from MS)

    Maybe this info will give you MS Engineers a clue where to look further. I'm out of options. And yes, my laptop has the latest Intel WLan drivers (v17.1.0.19, date 21-07-2014).

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  2. Anonymous
    2014-12-20T15:32:27+00:00

    Hi Davlon,

    I am sorry to know that you are having issues more CPU usage. I really appreciate if you can provide the following details to help you:

    1. What is the make and model of the computer?

    2. Which version of Windows is installed on the computer?

    3. Have you tried any troubleshooting so far to fix the issue? If yes, what are the results?

    4. Have you checked the issue in Safe mode with Networking?

    Please get back to us with the above information to guide you in the right direction.

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  3. Anonymous
    2014-12-18T20:49:26+00:00

    I have same issue and same laptop too.

    I'm seeing a trend here...

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  4. Anonymous
    2014-11-14T02:04:22+00:00

    Same issue with same laptop.

    Disabled and re-enabled wireless adaptor to fix.

    Be good to get a solution rather than a workaround.

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