Ethernet adapters missing


  1. Posts : 97
    Windows 10 Pro 64-bit
       #1

    Ethernet adapters missing


    Windows build 19041.867
    Gigabyte motherboard.

    At least I think they are. If I go to Change adapter settings I see my Wifi adapter and 2 ethernet adapters (one for Wifi), but they are both Hyper-V Virtual adapters.

    Hyper-V is not enabled. I enabled it, restarted, checked - no change, disable it, restarted. No change.

    It is possible that my MB has failed, it is giving me problems. New one is on order. Just worried that it is a Windows setting which is causing this.

    Diagnosing shows no problems.

    BTW, my router confirms that ethernet is not working and networking in the notification area also doesn't mention ethernet, just Wifi. I can't stream my movies without it.
    Last edited by macnab; 15 Mar 2021 at 11:31.
      My Computer


  2. Posts : 1,244
    Windows 10 Pro x64 21H2 (Build: 19044.1415)
       #2

    macnab said:
    I see my Wifi adapter and 2 ethernet adapters (one for Wifi), but they are both Hyper-V Virtual adapters.
    This is confusing because adapter can be either WI-FI or ethernet, but not 2 ethernet one of which is WI-FI.

    Please follow steps below to share system information file:

    1. Click on Windows button
    2. Type msinfo32 on your keyboard
    3. Right click on "System Information" and Run as Administrator
    4. If asked for password enter your password and click OK
    5. Click on: File -> Save...
    6. Save the file to C:\ root drive
    8. Zip up this file and attach to your reply

    For more information about msinfo32 tool see link below:
    https://support.microsoft.com/en-us/...-msinfo32-tool

    my router confirms that ethernet is not working and networking in the notification area also doesn't mention ethernet, just Wifi. I can't stream my movies without it.
    You either connect computer with LAN cable to router or use WI-FI, having both connections is place is not as simple so you have to make your choice.
      My Computer


  3. Posts : 97
    Windows 10 Pro 64-bit
    Thread Starter
       #3

    Here you go. Screenshot of Change Adapter settings included.
    Attached Thumbnails Attached Thumbnails Ethernet adapters missing-2021-03-15-19_45_55-network-connections.jpg  
    Ethernet adapters missing Attached Files
      My Computer


  4. Posts : 1,244
    Windows 10 Pro x64 21H2 (Build: 19044.1415)
       #4

    You indeed have physical ethernet adapter installed but to figure out why it's not present do this:

    1. Right click on Windows button and select "Windows PowerShell (Admin)"
    2. If prompted for password, enter administrator password and click "Yes" to continue
    3. Copy all of the code below at once, right click into console to paste and press enter.
    Code:
    Get-NetAdapter -IncludeHidden -Physical | select * > $env:SystemDrive\adapter.txt
    In your C:\ root drive should appear adapter.txt file, please attach it to your new reply.
      My Computer


  5. Posts : 97
    Windows 10 Pro 64-bit
    Thread Starter
       #5

    Adapter.txt
    Ethernet adapters missing Attached Files
      My Computer


  6. Posts : 1,244
    Windows 10 Pro x64 21H2 (Build: 19044.1415)
       #6

    Thank you, unfortunately the command failed to capture realtek ethernet adapter, and msinfo32 shows the driver is not running so very likely either motherboard or adapter itself has gone bad or there is problem with the driver

    If you remember this adapter was working fine recently it could be because of Windows, you can try out installing another driver, gigabyte site does not offer any new one (most recent is from 2015) (both chipset and LAN driver), instead try get chipset driver from with INF utility:
    Download Chipset INF Utility

    If installing chipset does not work in Windows go to:
    System -> Update & Security -> View optional updates -> Driver updates
    Try to find "Intel - System" or similar and install it then reboot system.

    For LAN adapter see realtek site below:
    Network Interface Controllers > 10/100M Fast Ethernet > PCI Express Software - REALTEK

    Install realtek driver and see if this works.
      My Computer


  7. Posts : 97
    Windows 10 Pro 64-bit
    Thread Starter
       #7

    Thanks. Was working fine for 10 years until 3 days ago. I am sure the new MB will fix it. Will in any case have different drivers.

    Replacing MB because:
    If I Restart it stops at Press Del to enter setup. Goes no further. If I shut down and switch on it boots perfectly.
    The display adapter stops giving HDMI output during boot.
    I get random BSODs.
    My mouse-pointer freezes. Sometimes it just stays that way, sometimes the PC reboots. (Except it stops at Press Del to enter setup.)

    Thanks for the help. SysInfo also showed me a problem with my username, which I have posted on the appropriate forum.
      My Computer


  8. Posts : 1,244
    Windows 10 Pro x64 21H2 (Build: 19044.1415)
       #8

    You're welcome, new MB is good, current one is already old enough.
      My Computer


 

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