Windows 10: Network / Ethernet PCI card not registering connection

Hi All, I am just wondering if someone can help me with this problem.I am using an Asus A15 Laptop running Windows 11. There is a PCI Ethernet card attached that I use to connect to PLC's and the like for work.The issue that I am having is when I connect an Ethernet cable to my laptop, it does not recognise the connection. Under Network Connections / Ethernet there is a big red cross.Yes, I have tried different Ethernet cables, ensured all ports are clean and even tried the same connection set up on an older laptop and it connects perfectly.Upon further investigation in Device Manager, it says

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Need a PCI Ethernet Network Adapter


My procedure has been to reboot a desktop computer into the BIOS Setup and disable the onboard Ethernet/Network adapter, shutdown, pull the power cord out of the computer and wait a minute so residual power will drain off the motherboard. Pressing the On/Off switch should do the same. Then on newer computer I will install a PCIe X1 NIC/Network Interface Card or if no PCIe X1 slot there should be a PCI slot and use a PCI card. May have to install software but should have come with it. The advertisements for such a card should specify the OS it will work with.
An example of a PCIe X1 card, many others available:
Intel EXPI9301CTBLK PCI-Express Network Adapter - Newegg.com

 

Issues with integrated Ethernet and PCI-E Ethernet adapters


Hello,

Recently my on-board Ethernet port stopped working. At first I noticed that I no longer had the Wired Connection in the bottom right of my taskbar, instead replaced by the Wi-Fi symbol. I checked to make sure that my ethernet cable was plugged in, and that the lights on either side of the cable were blinking. They were. I then checked my Device Manager to make sure the driver was still there. It was. The only issue I could see was that my ethernet adapter no longer showed up in my network settings, only my Wi-Fi adapter was listed. I noticed in Windows Update, it mentioned that it failed to install a driver for a network component, so I decided I would look for the most up to date driver for my ethernet adapter online, and install it myself. Here is where the real trouble started; Every time I try to uninstall the driver for my ethernet adapter, including when I tell it to delete local files, it comes right back. I've tried disabling it first, and then uninstalling, and even completely disabling my windows update, and automatic device installer, but it still comes back every time. After a few hours of trying this with no luck, I decided to just run Recovery, and luckily it gave me a restore point to just before it ran the last Windows update. After recovery ran, everything worked, until I shut my computer off. When it booted back up, the ethernet adapter was missing again. Went through the same steps; Recover and wait. This worked, and I disabled Windows Update, and it has worked since. However, this fix isn't good enough for me. I want the latest updates from Microsoft, so I just decided to buy a new PCI-E Ethernet Adapter, and hope that would work better. I installed the card into my computer, and it didn't show up in my list of network adapters either, yet the driver for it shows up in device manager. I can also not uninstall this driver. What is wrong with windows? Why can I not delete a driver and just have it list the hardware under Other Devices as an unknown device? Is there some firewall setting that stops me from deleting drivers? Any help would be greatly appreciated.

 

Domain network ethernet not working but wifi does?

Hi FreeBooter, I already came across this article and followed the steps with no results, I came across other articles that suggested the same steps but still nothing has worked? Thanks for the reply.