Close
Skip to content

36 Comments

  1. Vince
    October 19, 2021 @ 9:01 pm

    Thanks worked great for me on my Windows10 machine, I was getting the error Unavailable – Device Missing and now its back.

    Reply

  2. Jason
    September 17, 2021 @ 8:28 pm

    HOW AM I SUPPOSED TO CONNECT TO THE INTERNET TO DOWNLOAD DEVCON.EXE IF YOU JUST HAD ME UNINSTALL ALL THE SOFTWARE THAT HELPS ME CONNECT TO THE INTERNET?!

    Reply

    • lakonst
      September 23, 2021 @ 3:42 pm

      I do not say anywhere in the instructions to uninstall your network card.

      Reply

  3. Nuh
    October 23, 2019 @ 7:01 am

    Well i tried this for a client's computer and 5 months after the issue came back again exactly on the same date as well. Not quite too sure what happened. Lenovo Laptop running Win 7 Pro 64 bit in an AD environment connected to domain services.

    Reply

  4. Sedat Kumcu
    October 12, 2019 @ 10:18 am

    I have implemented the things that are said from the device administrator screen. Everything's okay. Thank you so much.

    Reply

  5. Jahboa
    August 20, 2019 @ 9:49 pm

    It worked for me (win7 ultimate x64 SP1).!
    I had to repeat steps 1&2 to get rid of all drivers (second time I checked 'delete driver software' for MAC bridge; I just read that I shouldn't have, but it worked anyway)
    I also had to be very careful to DL the right .cab file (8.1 for W7).
    I still don't have my internet connection back, but at least my drivers at running.
    Thanks!!

    Reply

  6. Teoatino
    October 3, 2018 @ 10:53 pm

    Hello.
    I come to point 4.2 and here I get the error devcon.exe faild. And there is no Windows Security window I have strictly followed the instructions. I even tried various versions of devcon.exe (For 8, for 8.1 etc.) I have Windows 7 Pro

    Reply

    • lakonst
      October 4, 2018 @ 1:52 pm

      @Teoatino: First of all make sure that you're running devcon.exe as Administrator. If the problem persists, then proceed and disable completely the driver signing

      Reply

      • Teoatino
        October 28, 2018 @ 4:51 pm

        Hello.
        I re-performed the procedure strictly in accordance with your instructions. I also tried the "test mode" to install the rodent. However, I will still stop at 4.2 (command: devcon.exe install c: \ Windows \ inf \ netavpna.inf MS_AgileVpnMiniport) and I already receive the information in the console: devcon.exe failed. I do not receive any Windows Security warning information. Maybe you can specify exactly what version of Windows should I choose devcon.exe from? The site is given only for Windows 8, 8.1, 10 (although the headers are written that also for 7). Any hint?
        greetings
        Windows 7 Pro

        Reply

        • lakonst
          October 29, 2018 @ 10:09 am

          @Teoatino: Hello, the article is tested in Windows 7 Pro OS. Try to copy and paste the devcon.exe command in 'c:\windows\system32' folder.

          Reply

  7. Jordan Harnett
    April 16, 2018 @ 7:45 pm

    I get an error Devcon.exe is not recognisable as an internal or external command when entering into command prompt

    Reply

    • lakonst
      April 17, 2018 @ 9:20 am

      Jordan Harnett: Follow the instructions (exactly) to install the "devcon.exe" utility.

      Reply

    • ali
      October 19, 2018 @ 6:03 pm

      copy and paste the devcon.exe in windows/system32 folder

      Reply

  8. Amanda
    April 12, 2017 @ 8:05 pm

    Hi Trying to fix this problem. When I get to step 4.2, I get a devcon.exe failed message – any help?

    Reply

    • lakonst
      April 13, 2017 @ 9:48 am

      @Amanda: Did you follow these instructions to download devcon utility?

      Reply

  9. dave
    October 1, 2016 @ 12:46 pm

    good morning lakonst. well things were looking good. completed everything and the "Driver Software Installation" window popped up and said all 6 were "Ready to use".
    I then re-installed the dell driver and re-booted but still no connection…boo, hoo.
    I checked Network Adapters and none of the wan miniports were listed…
    the list of adapters is exactly the same as I mentioned in my previous post…
    here is the list as they appeared in the "Driver Software Installation" window after I installed all of the wans again…

    wan miniport (IPv6) #2
    wan miniport (Network Monitor) #2
    wan miniport (L2TP) #4
    wan miniport (PPPOE) #4
    wan miniport (PPTP) #4
    wan miniport (IP) #2

    as mentioned, all 6 had the green check mark "Ready to use"
    and, back to you…

    Reply

    • lakonst
      October 1, 2016 @ 1:03 pm

      @dave: Good Morning. I don't understand where is the problem now…Wan Miniport's are still missing or not? (View > Show hidden Devices).

      Reply

  10. dave
    September 30, 2016 @ 8:19 pm

    ok. vpn program uninstalled.
    network diagnostics tool, "Troubleshooting couldn't identify the problem".

    network adapters are as follows, (in order):
    Bluetooth device, (Personal Area Network)
    Bluetooth device, (RFCOMM Protocol TDI) #2
    Dell Wireless 1703 802.11b/g/n (2.4GHz)
    Realtek PCIe GBE Family Controller

    then each of the wan drivers that successfully installed:
    WAN Miniport (IP) #3
    WAN Miniport (IPv6) #3
    WAN Miniport (Network Monitor) #3
    with all 3 having the yellow exclamation mark.

    I will proceed with uninstalling the wans and you want me to uninstall the Dell Wireless 1703 driver?

    Reply

    • lakonst
      October 1, 2016 @ 7:14 am

      @dave: Yes please try that. (Before uninstall download the driver from DELL). Maybe a Windows driver update has messed your WAN miniports.

      Reply

  11. dave
    September 30, 2016 @ 4:55 pm

    good morning lakonst. had some success. 50/50.
    the following driver's did not install
    wan miniport (ip) #3
    wan miniport (ipv6) #3
    wan miniport (network monitor) #3.

    l2tp, pppoe and pptp installed fine and show "ready to use".
    the above also had #3 at the end of the line.

    I did take a screen shot of the cmd window just in case you wanted to see it but there doesn't seem to be a way to post it here.

    thanks, dave.

    Reply

    • lakonst
      September 30, 2016 @ 6:08 pm

      @dave: Ok, let's go step by step. 1. Do you have configured a vpn connection on the machine? If so, then delete it.
      2. Run this Network Diagnosticks tool to see if it can fix your problem.
      3. Which Network Adapters are listed in Device Manager? Uninstall the WiFi adapter and all Miniport Adapters (once again) and then reinstall it. (If you have an Intel WiFi adapter then use the Intel® Driver Update Utility)

      Reply

  12. AmirHossein
    September 30, 2016 @ 12:16 am

    I wanted to thank you for sharing my guide to download DevCon. And thank you for the fix to WAN miniport, I was looking for that BTW :)

    Reply

    • lakonst
      September 30, 2016 @ 10:27 am

      @AmirHossein: Thank you for your effort to help us.

      Reply

  13. dave
    September 29, 2016 @ 11:13 pm

    hi lakonst. just ran the command. "Windows Resource Protection did not find any integrity violations."

    Reply

  14. dave
    September 29, 2016 @ 3:26 pm

    good day lakonst. yes, I have been. I was successful in copying it to system 32 folder and then proceeded with the rest of the installation of the miniports but no luck. everything played out just as you described in your tutorial. I made sure each of my commands were typed correctly but after I re-booted and opened up network adapters, no wans were installed at all. I went back to "•devcon.exe install c:\Windows\inf\netavpna.inf MS_AgileVpnMiniport" and started over again, but still no luck.
    and, over to you…lol.

    Reply

    • lakonst
      September 29, 2016 @ 5:14 pm

      @dave: In device manager's main menu, go to Action > Scan for hardware changes. If nothing happens, then open command prompt with admin privileges and run: sfc /scannow

      Reply

  15. dave
    September 28, 2016 @ 2:48 pm

    ok. so far so good. I've successfully deleted all of the wan miniport drivers, downloaded the virtual clone program and found the devcon.exe file. when copying it over to the root directory, should it go into a specific folder or as a stand alone? I tried copying it as a stand alone but received an error message "0x80070522: A required privilege is not held by the client."
    Thanks for your patience and help…

    dave

    Reply

    • lakonst
      September 29, 2016 @ 9:21 am

      @dave: (are you logged in as Administrator?) Try to copy devcon.exe to C:\Windows\System32 folder

      Reply

  16. dave
    September 27, 2016 @ 1:09 pm

    thanks lakonst for the clarification.
    when "uninstall the recently installed MAC Bridge Miniport device.", should "Delete the driver software for this device" be checked or unchecked.

    Reply

    • lakonst
      September 27, 2016 @ 2:17 pm

      @dave: Do not delete, just uninstall. (unchecked)

      Reply

  17. dave
    September 25, 2016 @ 3:54 pm

    good day. i'm looking at applying this tutorial to my problem but just wanted to know if this is for windows 10 or can be applied across various operating systems. I have windows 7 and while going through the tutorial and confirming the different links, found that the one link to microsoft's site was windows 10 specific.

    thanks, dave.

    Reply

    • lakonst
      September 26, 2016 @ 1:12 pm

      @dave: The tutorial is written for Windows 7 OS.

      Reply

  18. Martin Luksik
    July 3, 2016 @ 9:10 am

    Hello,

    When I try to instal the MAC BRIDGE MINIPORT… an error with code 31 occures and the instalation is not finished so I cant move to next step of your manual…. Could you please help me out with it?

    Thank you very much

    Reply

  19. Jason Kioke
    June 4, 2016 @ 12:16 pm

    I don't have MAC bridge miniport in my list

    Reply

    • lakonst
      June 5, 2016 @ 10:00 am

      @Jason Kioke: (See the note) If MAC Bridge Miniport is unavailable, choose any other adapter.

      Reply

Leave a Reply

Your email address will not be published. Required fields are marked *

css.php