PCI\VEN_8086&DEV_125D

Ethernet Controller I226-IT driver

PCI\VEN_8086&DEV_125D is the Intel Corporation Ethernet Controller I226-IT, an Ethernet device. Without it the wired port shows as an Ethernet Controller under Other devices and the cable does nothing. Get it from Windows Update or your PC maker first; the chip maker's own package is on intel.com.

Download from intel.comFull guide: The right Intel Ethernet driver

Device details

Hardware IDPCI\VEN_8086&DEV_125D
Device nameEthernet Controller I226-IT
MakerIntel Corporation (PCI vendor ID 8086)
Device typeEthernet
Driver guideThe right Intel Ethernet driver
Latest official packageIntel Network Adapter Driver for Windows 11 (Wired_driver_31.3_x64.zip) 31.3, October 16, 2026

How to install the driver for Ethernet Controller I226-IT

  1. Confirm the ID. In Device Manager, right-click the device, open Properties, then Details, and pick Hardware Ids. The first line should start with PCI\VEN_8086&DEV_125D.
  2. Try Windows Update. Settings, Windows Update, Advanced options, Optional updates. Network drivers may appear here once another connection works, such as Wi-Fi or a phone hotspot.
  3. Check your PC maker. Enter your model or serial number on its support site and look under Networking or LAN.
  4. Use the chip maker's package. Intel Network Adapter Driver for Windows 11 (Wired_driver_31.3_x64.zip) on intel.com. Our the right intel ethernet driver guide explains which package fits.
  5. Restart and check. Plug in the cable and check that Windows shows a wired connection.

Other Intel ethernet IDs

Device names: The PCI ID Repository, public data. We never host driver files: downloads come from the maker.