Realtek Rtl8139 Driver 810x Family Pci-e Gigabit Windows 10 Jun 2026

Realtek RTL8139/810x Family PCI-E Gigabit Driver for Windows 10: Complete Guide

Select the .inf file and force the installation despite any digital signature warnings. Troubleshooting Common Errors Code 10: This device cannot start

Go to the Advanced tab in the device properties. Find Speed & Duplex . Change it from Auto Negotiation to 1.0 Gbps Full Duplex . If the connection breaks entirely after doing this, your ethernet cable (must be Cat5e or Cat6) or the connected router port does not support gigabit speeds. Conclusion and Recommendations

Realtek does not make this easy, but here is the direct path: realtek rtl8139 driver 810x family pci-e gigabit windows 10

Click . Click Have Disk... and browse to the extracted folder.

As of 2025, the stable version for the 810x family on Windows 10 is or higher. Avoid any driver dated before 2019.

Download the final from a trusted catalog repository. Extract the driver files to a folder on your desktop. Realtek RTL8139/810x Family PCI-E Gigabit Driver for Windows

Are you experiencing a in Device Manager, or is the adapter just not showing up at all?

This is the most common error when running an RTL8139 card on Windows 10. It means the driver loaded, but the OS cannot communicate with the hardware structure.

This error occurs when the installer's automatic hardware detection fails, often because a ghost or incorrectly flagged device exists in the system. Change it from Auto Negotiation to 1

If you are trying to use an older driver (e.g., from 2004-2015) specifically for the legacy RTL8139, Windows 10’s security features might block it with an "Installation Failed" error.

The Realtek RTL8139 is a popular Ethernet controller chip used in various network interface cards (NICs) and motherboards. It belongs to the 810X family of PCI-E gigabit Ethernet controllers, which provide high-speed network connectivity for desktops and laptops. If you're using a Windows 10 operating system and have a device with the RTL8139 chip, you'll need to install the correct driver to ensure optimal performance. In this article, we'll provide a detailed guide on how to find, download, and install the Realtek RTL8139 driver for the 810X family PCI-E gigabit Ethernet on Windows 10.