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44 Comments

  1. Radi
    December 11, 2020 @ 5:30 pm

    its working, thanks

    Reply

  2. youssef
    September 27, 2019 @ 3:45 pm

    please help me i can't find the config in the registry editor there is only (Default) and Filter Classes

    Reply

    • lakonst
      September 27, 2019 @ 3:57 pm

      Uninstall the network adapter.

      Reply

  3. Shah Bhuian
    April 16, 2019 @ 11:42 am

    OMG. Thanks a ton. After 3 days without network… Trying everything except fresh OS … Just deleting the registry worked … I still can't believe it… Oh.. The horror… God bless you.

    Reply

  4. Niko
    February 12, 2019 @ 1:48 am

    Thaaaanks you guuuuys, it's working :):)

    Reply

  5. Aditya
    December 23, 2018 @ 7:24 am

    I can't thank you enough. Fixed my issue

    Reply

  6. Naime
    September 24, 2018 @ 3:56 pm

    Nice post but MAKE SURE someone didn't disable booting from a NIC card in the F2 bios setup (Dell PC) and then disable the onboard NIC card by accident.

    Reply

  7. suzi
    June 7, 2018 @ 8:03 am

    my issue was not with ethernet, but a Netgear adapter. I purchased a newer one on the recommendation of a netgear person but when I uninstalled the old one and attempted to install the new one – It wouldn't install so that started the whole nightmare. uninstalled and reinstalled with no luck. couldn't get restore to get back to a time when the older one worked. still stuck. having to use my win10 laptop just to try and get answers. not sure if I should try to reinstall the older one after following this thread or reinstall the newer one….? (Win7Pro 64 bit) netgear WNA1100 (older) Netgear 600 A6100 is the newer one.

    Reply

  8. Elessar1954
    March 3, 2018 @ 2:53 am

    I tried step 2 of the fix your Ethernet problem and removed the config entry in the registry, uninstalled the Ethernet driver and rebooted allowing windows to repair the problem and when it booted back up the driver was installed properly and the problem was solved and as a bonus the red X was gone.

    Reply

  9. Saurabh Rathor
    January 21, 2018 @ 8:33 am

    Yes sir this is beat operation but wifi device not working use are you any idea

    Reply

  10. Thomas S
    December 6, 2017 @ 9:14 pm

    I had this same problem, and it was the result of removing the Checkpoint VPN client, reinstalling fixed the whole problem

    Reply

  11. Andy Collins
    October 19, 2017 @ 8:22 am

    I uninstalled and restarted and everything is working great!! Thank you

    Reply

  12. Steven Soosai
    October 16, 2017 @ 4:54 am

    These steps not working on my windows 7 laptop. The adaptors cannot be uninstalled either. Installed latest drivers for the adapter not solving the problem too. The system is not having any previous restore point saved either thus cannot even roll back.

    My problems started after sudden power failure and computer booted once with blue screen. After successful normal boot I'm stuck with no network problems. Both wired LAN and wifi cannot be used.

    Reply

    • lakonst
      October 16, 2017 @ 10:11 am

      @Steven Soosai: Try the Methods 5 & 6 from this guide to fix Windows problems.

      Reply

  13. Brian
    August 21, 2017 @ 1:28 am

    Try both solution its still not working both the nfForce networking controller and Broadcom wireless 802.11b/g WLang are shown with the yellow ! under unknown on the Device Manager.
    Windwows has determined the driver software for your device is up to date and the best driver is already installed.

    Reply

    • lakonst
      August 21, 2017 @ 10:05 am

      @Brian: First of all make sure that your system is virus free. Then remove any antivirus/firewall software if installed and reapply the solutions mentioned on the article. If the problems persists, then restore your system to a previous working state.

      Reply

  14. Nick
    June 30, 2017 @ 8:17 pm

    Wow, well done kind sir! I can't really thank you enough! You saved me !!! Very good tips thourough and easy to apply!

    Reply

  15. Sach
    April 5, 2017 @ 6:03 am

    Solution 2 worked without any issue.

    Reply

  16. ABC
    March 14, 2017 @ 1:55 am

    Awesome Man!!
    I was struggling with this issue of Code31 , it is resolved in a jiffy after reading your article

    Reply

  17. Lucien
    March 9, 2017 @ 8:12 pm

    Thanks a lot ! I was struggling for more than 2 days with error 31 after having uninstalled Zonealarm. Great stuff !

    Reply

  18. Nik
    February 28, 2017 @ 11:11 am

    Wow, done! (Win7-32)

    Reply

    • Karth
      March 2, 2017 @ 2:49 pm

      Thanks for the reply…did many things then finally working…

      Reply

  19. Karth
    February 27, 2017 @ 7:46 pm

    after doing this my net work card started running but my keyboard and mouse not working.
    Windows xp Profe sp2

    Reply

    • lakonst
      February 28, 2017 @ 10:07 am

      @Karth: Unplug and then re-plug your mouse and keyboard.

      Reply

      • Andrew taft
        June 20, 2017 @ 3:36 am

        Any success with win 10??

        Reply

  20. Pascal H
    February 27, 2017 @ 12:21 am

    Thanks it worked!

    Reply

  21. Rosa Andreas
    January 6, 2017 @ 10:07 am

    I am using TP-LINK TL-WN725N Wireless Network Adapter for Windows 10. This adapter is now working properly. Does anyone know how to solve this problem.

    Reply

    • lakonst
      January 6, 2017 @ 10:43 am

      @Rosa Andreas: If the Wireless Adapter is working properly, what it the problem?

      Reply

  22. Charles
    January 6, 2017 @ 2:26 am

    Registry solution saved me from re-installing windows os, going through data backup and restore and loosing cache data…

    Thank u so much! x mil

    Reply

  23. Jovan
    December 21, 2016 @ 9:47 pm

    Thank you! You are the best!

    Reply

  24. Wilz
    December 18, 2016 @ 12:04 pm

    i use it on wireless, and its missing :(

    Reply

  25. fredadcock
    November 6, 2016 @ 11:41 pm

    Yeah, that is the problem the program worked with 7 but when I upgrade to 10 it would not work. I think 7 was too old to upgrade.

    Reply

  26. fred adcock
    November 6, 2016 @ 8:01 am

    yeah, I am trying but when I get to expanding network, no conf in right pane. I searched the expandable 5 folders. lost port usb drivers upgrading to 10 from 7

    Reply

    • lakonst
      November 6, 2016 @ 1:26 pm

      @fred adcock: The article is written for Win7. I don't know if the instructions work ιn Win10.

      Reply

  27. MS
    November 5, 2016 @ 10:07 am

    Thank you a lot, solved with solution 1!

    Reply

  28. PDM
    November 1, 2016 @ 7:29 pm

    THANK YOU SO MUCH FOR POSTING THIS!!!

    Reply

  29. ultimat3 jallow
    October 22, 2016 @ 10:37 pm

    You are a genius after digging the internet for days, i finally found my savior..
    Thanks a million times. Its well written and the steps are easy to follow

    Reply

  30. Nadeeshani
    July 12, 2016 @ 3:57 pm

    When I follow solution 2, I cannot find config value in network folder. There are only Default and FilterClasses. I followed solution 1 but I can't correct my error.
    (HP – PC / Windows 10)

    Reply

    • lakonst
      July 12, 2016 @ 5:29 pm

      @Nadeeshani: Maybe the adapter is damaged. Try to remove it and put it back again or try with a different adapter.

      Reply

  31. dena
    June 17, 2016 @ 6:18 am

    its working, thanks

    Reply

  32. Carol
    April 1, 2016 @ 10:06 am

    Oh my God it worked!!!!! u the best…

    Reply

  33. Andreas
    March 26, 2016 @ 3:09 pm

    Well written tutorial. I recently got this issue but I've still not found an easy-to-follow tutorial as to how I may fix this. This pointed me in the right direction; however it's still not fixed for me..
    I have a ASUS usb-n53 wireless adapter. When I uninstall the drivers, all I have to do is disconnect the usb from my computer and plug it back in and the driver is back. I'm not even sure it re-installs the driver because as soon as I plug it in it's back in device manager instantly, and there's no box that pops up when installing the driver, so idk..

    Do you think it might help to manually delete the driver and re-install them from a usb disc? if so, how do I do this.

    Reply

    • lakonst
      March 27, 2016 @ 11:07 am

      @Andreas: Check in Program & features (from Control Panel) and uninstall the WiFi driver from there.
      If there isn't a program for your WiFi adapter there, 1. download latest driver for your Wireless adapter. 2. Then right-click on WiFi adapter (in device manager) > Properties and at Driver tab select Update Driver and use the downloaded driver to install the WiFi adapter.

      Reply

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