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  • Realtek Ethernet Controller is not connected to my Laptop

    I have a major issue that I hope someone can help me with. My Realtek Controler is no longer connected to my laptop. It is not hidden in the device manager either. It is just not there. Is there a way to enable it again in Command Prompt? I have tried all the popular ways to find it and so far nothing has worked except one day a Microsoft customer tech walked me through some command prompt steps, which was way more than just flushing my DNS. I wish I had written everything down because the steps I can’t remember are the ones that fixed it. Unfortunately with the afternoons, windows update it was gone again. It was actually just hidden but stupid me did what the online suggestions said and I uninstalled the driver and rebooted thinking it would be installed again and it was just gone. Does anyone know what those magic steps are in the command prompt that will bring back my Ethernet controller? Thank you in advance.

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    Sure, I will help you with that.
    There are two conditions when a device is connected to a computer: either it is shown in the device’s category (network adaptor) or it goes to “other devices” in the “device manager.” If the driver is installed for the device, it goes to its category; otherwise, it goes to “other devices.”

    If your device is connected to your computer, it must be listed in its category (network adaptor) or under “other devices” in the device manager. So first, make sure that your Realtek Ethernet controller is detected or not in the “device manager.”

    If it isn’t found in either “network adaptor” or “other devices,” it means that your Realtek card isn’t physically connected to the laptop properly or that it has a hardware problem. To fix this issue, open the laptop’s back cover, remove the network card, and then re-insert it. Don’t forget to clean both of its ends.

    If you can provide me with a screenshot from the device manager, then it will be very easy for me to diagnose the issue for you. When you take a screenshot, make sure that all of the other devices and networks are properly expanded and shown.

    Through the command prompt, you can apply the command to a particular card, even though it must be detected by your computer. If your card is not detected on your computer, the command won’t work.

    Try updating your network card driver, here it is: https://download.lenovo.com/pccbbs/mobiles/r0per07w.exe

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    Hi,

    Thank you. I appreciate your help. I took 2 screenshots. I don’t know if one is connected to the other but in looking for other devices I discovered this.Screenshot 2022-11-04 092901Screenshot 2022-11-04 093344

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    Please provide one more screenshot of your network adapter page – where all the network adapters are listed. To open to the “Network Adapter” page: press Window+R keys together to open the RUN box and type there NCPA.CPL and press the OK button, the network adapter page will open up. Please provide that page’s screenshot. After that, I can suggest further steps.

    Like this:

    ncpa.cpl

    network-adapter-page

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    Hi. Thank you for getting back to me. Here is the screenshot of my connections. I only have 2. Screenshot 2022-11-06 075709

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    The Ethernet adapter is not listed on the “Network Adapter” page or on the “Device Manager” (even under “Other Devices”), which is an exact sign that your Ethernet card is not being detected.

    Try the following steps:

    1) Download and run this Net Adapter Repair Tool. – It has all the commands that you said microsoft guys ran in the command prompt.

    Disclaimer: In step 2, if the driver doesn’t install itself after you restart the computer, your internet connectivity might hamper.

    2) Uninstall all the devices under the “Network Adapter” from “Device Manager” and reboot your computer. It will be reinstalled automatically when your computer is rebooted.

    3) Open your laptop cover and reinstall the network adapter – remove it and place it again.

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    Thank you for getting back to me. You said to uninstall all of the devices under network? That includes the wan mini ports and the Microsoft virtual adapter that is hidden too?

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    Yes, uninstall all of them. But before uninstalling the WiFi driver, take a backup of your WIFI adapter driver so that if it doesn’t install automatically then you can install it manually. Download the driver from its official website.

    You can try this once but the problem seems like a hardware problem with your Ethernet adapter.

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    Ok Thank you. I agree that it’s a hardware problem with the Ethernet Adapter. I just don’t know how to reconnect it if it can be done without having to bring it to a shop. I ran that program but it didn’t change anything. I’ll let you know if anything changes.

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    Okay, by the way the Ethernet card looks like this:

    ethernet card on laptop

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    Thank you.

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    The last thing I forgot to suggest to you is: create a new user profile of your Windows and then reboot your computer. Afterwards, login to your new user profile that you have just created and check if the same issue persists with the new profile as well. If the issue still persists, it means it is a hardware issue.

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