Windows Wi-Fi doesn't have a valid IP configuration

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  1. sml156's Avatar
    Posts : 673
    Microsoft Windows 10 Pro 64-bit
       27 Apr 2016 #21

    At this point I would open up Device Manager and see if you can roll back the Driver.
    To open Device manager press the Windows key + R and type or paste the code below into it.
    Click image for larger version. 

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    If it's greyed out like mine is above I would uninstall it. But first I would go to your manufactures web site and download the drivers for it.
      My ComputerSystem Spec

  2.    27 Apr 2016 #22

    It was greyed out so reinstalled still the same problem: No Internet, secured
      My ComputerSystem Spec

  3. sml156's Avatar
    Posts : 673
    Microsoft Windows 10 Pro 64-bit
       27 Apr 2016 #23

    I would check the forums of the manufacturer and see if anyone else is having problems with that WiFi card with Windows 10. Other than that I'm stumped
      My ComputerSystem Spec

  4.    05 Dec 2016 #24

    I just spent an hour trying to fix this problem. I then just did a system restore and the problem was resolved.
      My ComputerSystem Spec

  5.    16 Dec 2016 #25

    I have had the same issue, i just tried everything on this feed just about gave up hope, when i came across this and then it worked. So i want to share this with anyone else having an issue with it. I was able to resolve it by going to Control Panel - System - Device Manager - Network adapter - and right click on Qualcomm Atheros wireless Network adapter and click Enable and everything worked again. MUST do it from the Device manager setting.
      My ComputerSystem Spec

  6.    16 Dec 2016 #26

    I've had 2 calls for this issue in the last 3 days. Has M$ been "fixing" Windows 10 again? TCP/IP stack reset resolved the problem.

    • To open a command prompt, type cmd in the search box
    • At the command prompt, enter the following command, and then press Enter: netsh int ip reset c:\resetlog.txt Note If you don't want to specify a directory path for the log file, run the following command instead: ...
    • Restart the computer.

      My ComputerSystem Spec

  7. Posts : 87
    windows xp, vista, 7, 8.1, 10 multiboot
       16 Dec 2016 #27

    Another messed up Windows Update

    Last week Microsoft issued a cumulative update version 1607 which messed up the DHCP settings resulting in this error. They issued a patch to correct this error yesterday.

    So far I have fixed 8 PCs with this issue (and live in a village of only 5000 people!!)

    I have tried various suggested fixes but the one that I found that worked was as follows:

    Device manager: uninstall the affected network driver (but don't remove the driver software).

    Go into the Command Prompt (with admin rights) and type:
    ipconfig /flushdns
    netsh int ip reset resetlog.txt
    netsh winsock reset

    Close the command prompt and restart the PC; restarting should automatically re-install the network driver, but on one occasion I had to ask the device manager to check for new hardware and re-install, depends on yr system settings). I sometimes have to do this twice, I'm not sure but perhaps there is a delay before the system resets itself and acquires a new IP address from yr router.

    If using wifi, you will need to re-enter yr wifi key/password.

    Hope it helps you
      My ComputerSystem Spec

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