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After update "2025-05 Cumulative Update for Windows 11 Version 24H2 for x64-based Systems (KB5058411)" my ethernet stopped working.

Anonymous
2025-05-19T01:46:55+00:00

I have a Dell XPS 8960 with Windows 11 Pro.

The trouble shooter says that my cable is not connected. I checked that the cable was properly plugged into my PC and the AT&T box. The connection was fine but, the trouble shooter still said the cable was not connected. I switched cables and ensured the connection was fine. The trouble shooter still says the cable is not connected. In Device Manger, the "Killer E3100G 2.5 Gigabit Ethernet Controller" has a "This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)" error. However, when I run a driver update, Windows says that the proper driver is installed. Is the root problem something completely different than the error messages the system is giving me? If so, what is the problem and, what are my solution options?

Windows for home | Windows 11 | Internet and connectivity

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  1. Anonymous
    2025-05-19T02:30:10+00:00

    Hello Del! Thank you so much for reaching out, I am Tin, an independent advisor, and I am glad to assist you today with this issue.

    It sounds like your Dell XPS 8960's Ethernet issue post-update is related to the Killer E3100G network adapter driver, especially given the Code 31 error in Device Manager. This error indicates that Windows cannot load the driver properly, which can cause network connectivity problems, including the cable detection issue you're experiencing.

    Understanding the Root Cause:

    Driver Compatibility or Corruption: The recent Windows update (KB5058411) might have introduced compatibility issues or caused corruption in the existing driver.

    Incorrect Driver Loading: Even though Windows reports that the driver is up-to-date, it might not be the correct or fully compatible version for your hardware after the update.

    Device or Hardware Issue: Less likely if the hardware was working fine before, but hardware issues can't be ruled out entirely.

    Here are a few possible solutions:

    1. Uninstall and Reinstall the Ethernet Driver:

    Step 1: Open Device Manager.

    Step 2: Locate Killer E3100G 2.5 Gigabit Ethernet Controller.

    Step 3: Right-click and select Uninstall device.

    Step 4: Check Delete the driver software for this device if available.

    Step 5: Restart your PC. Windows should attempt to reinstall the driver automatically.

    Note: If Windows does not reinstall it automatically, proceed to manually install the latest driver.

    1. Download and Install the Latest Driver from Dell or Killer:

    Visit Dell's support website for your XPS 8960 model: Dell Support

    Search for your model and download the latest Ethernet driver.

    Alternatively, visit Killer Networking website: Killer Networking Drivers

    Install the latest driver manually.

    Use Windows' Compatibility Mode (if needed):

    If the latest driver isn't working, try installing an earlier version of the driver compatible with your hardware.

    1. Rollback the Windows Update (if urgent):

    If the problem started immediately after the update, consider rolling back the update:

    Go to Settings > Windows Update > Update history > Uninstall updates.

    Find KB5058411 and uninstall it.

    Restart and test the network.

    1. Check for Additional Windows Updates or Hotfixes:

    Sometimes, Microsoft releases patches to fix issues caused by updates. Check for any pending updates.

    System Restore (if available):

    If you have a restore point from before the update, restoring might fix the issue:

    Search for System Restore.

    Follow prompts to restore to a point before the update.

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  2. Anonymous
    2025-06-26T18:28:35+00:00

    i can not connect the 2 pc beetwin them

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  3. Anonymous
    2025-06-25T18:50:28+00:00

    Have a similar issue with Intel Killer 1750 wifi card that comes with a Dell G5 SE laptop. After latest Windows 11 24h22 build update, the card is no longer detected. Installing the latest Killer updates from Intel the install flags to "hardware not found", so cannot it be installed. Removing the 24h22 update to restore previous build, the card works fine. Re-installing 24h22, the same issue arises. Swapping with an AX210 Intel wifi card, I have the same issue. Looks like I have a serious problem with the Dell G5 se and build 24F22. No info on this on the Dell site. Any suggestions?.

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