F5F Stay Refreshed Hardware Desktop LAN connection not functioning with MSI X570 Unify board

LAN connection not functioning with MSI X570 Unify board

LAN connection not functioning with MSI X570 Unify board

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Mini_Muffin24
Member
179
10-11-2021, 12:38 PM
#1
At first, I was using Windows 10. After upgrading to a newer version, I lost the ability to connect to my network. The Device Manager didn’t detect my LAN or Wi-Fi, and connecting to any network in Windows failed completely. It felt like there was no network interface at all. Initially thought it was a driver problem, but after installing updates for both drivers, the issue persisted.

While updating the Realtek LAN driver, I received an error stating the network card wasn’t found. I attempted to hide devices, remove and disable any listed adapters (none were my LAN or Wi-Fi), reset BIOS, and even wiped my SSDs before switching to Windows 11. Despite being up to date, my onboard LAN remains unrecognized.

I also tried using sfc /scannow and DISM tools to repair system files. There was a short window when I regained network access after disabling some adapters that VMware installs, but access was lost again afterward. In BIOS, the LAN driver is enabled. On the motherboard’s rear I/O, the Ethernet port shows lights when the cable is connected, yet the activity lights are off.

I purchased an Intel i226-V card, which also appears in Device Manager but only shows a link light without any activity indicators. It works in both PCIe x1 and x16 slots, but installing drivers fails repeatedly, always reporting no Intel network device found. The cable seems functional, and the router appears operational.

My sole current connection method is a USB 2.0 to Fast Ethernet adapter, capped at 100Mbps. For a workaround, I’m considering a higher-speed adapter. Given the persistent problems after updates and BIOS changes, it might be a hardware issue. I’m unsure how this could occur post-Windows update. If anyone has insights, it would be greatly appreciated. I’d prefer not to replace my motherboard unless necessary. I’ve attached a screenshot of my network adapters in Device Manager for reference.
M
Mini_Muffin24
10-11-2021, 12:38 PM #1

At first, I was using Windows 10. After upgrading to a newer version, I lost the ability to connect to my network. The Device Manager didn’t detect my LAN or Wi-Fi, and connecting to any network in Windows failed completely. It felt like there was no network interface at all. Initially thought it was a driver problem, but after installing updates for both drivers, the issue persisted.

While updating the Realtek LAN driver, I received an error stating the network card wasn’t found. I attempted to hide devices, remove and disable any listed adapters (none were my LAN or Wi-Fi), reset BIOS, and even wiped my SSDs before switching to Windows 11. Despite being up to date, my onboard LAN remains unrecognized.

I also tried using sfc /scannow and DISM tools to repair system files. There was a short window when I regained network access after disabling some adapters that VMware installs, but access was lost again afterward. In BIOS, the LAN driver is enabled. On the motherboard’s rear I/O, the Ethernet port shows lights when the cable is connected, yet the activity lights are off.

I purchased an Intel i226-V card, which also appears in Device Manager but only shows a link light without any activity indicators. It works in both PCIe x1 and x16 slots, but installing drivers fails repeatedly, always reporting no Intel network device found. The cable seems functional, and the router appears operational.

My sole current connection method is a USB 2.0 to Fast Ethernet adapter, capped at 100Mbps. For a workaround, I’m considering a higher-speed adapter. Given the persistent problems after updates and BIOS changes, it might be a hardware issue. I’m unsure how this could occur post-Windows update. If anyone has insights, it would be greatly appreciated. I’d prefer not to replace my motherboard unless necessary. I’ve attached a screenshot of my network adapters in Device Manager for reference.

Z
zKingPaiin
Member
55
10-23-2021, 07:17 AM
#2
After resetting the CMOS and testing with a Linux live environment, the adapter is probably nonfunctional. USB3 Gigabit devices are generally affordable or available as internal PCIe units.
Z
zKingPaiin
10-23-2021, 07:17 AM #2

After resetting the CMOS and testing with a Linux live environment, the adapter is probably nonfunctional. USB3 Gigabit devices are generally affordable or available as internal PCIe units.

J
JaredAlexis
Junior Member
46
10-23-2021, 07:52 AM
#3
I realized I still have that extra USB-to-Ethernet adapter, which supports Gigabit speeds. This should resolve the problem. If anyone has suggestions on what might have caused it, I’d love to hear them. Eventually, I plan to install Ubuntu on a USB drive and boot from it to test further. I’ll check back here if anything similar arises for others using this board.
J
JaredAlexis
10-23-2021, 07:52 AM #3

I realized I still have that extra USB-to-Ethernet adapter, which supports Gigabit speeds. This should resolve the problem. If anyone has suggestions on what might have caused it, I’d love to hear them. Eventually, I plan to install Ubuntu on a USB drive and boot from it to test further. I’ll check back here if anything similar arises for others using this board.