RealTek RTL8139 810x 8168 8111 PCI E Driver

The RealTek RTL8139 810x 8168 8111 PCI E driver allows Windows to communicate with compatible RealTek Ethernet adapters so your PC can connect to a wired network. It is useful after reinstalling Windows, when an Ethernet controller appears as an unknown device, or when you need to troubleshoot a missing or unreliable wired connection.

Before choosing a RealTek RTL8139 810x 8168 8111 PCI E driver download for Windows, check your adapter’s exact model and hardware ID in Device Manager. This device listing covers several controller families, so not every package supports every adapter or Windows release. For Windows 11, 10, 8, or 7, select a package that explicitly supports your hardware and operating system.

Key Features

• Enables wired Ethernet connectivity on supported RealTek network controllers for local network and internet access.
• Provides the driver components Windows needs to identify and manage a compatible Ethernet adapter.
• Supports adapter-specific connection settings, such as speed and duplex options, where available. Maximum connection speed depends on the controller and network equipment.
• May address compatibility or connection issues when an appropriate update includes fixes for your adapter.

How to Install RealTek RTL8139 810x 8168 8111 PCI E Driver

1. Identify your adapter. Open Device Manager and find it under Network adapters or Other devices. Open Properties > Details > Hardware Ids to confirm which controller you have.
2. Check your Windows version and system type. Match the package to your operating system and architecture, such as 32-bit or 64-bit. For Windows 10/11, verify explicit compatibility rather than assuming an older package will work.
3. Choose a compatible free download. Check the package details and select the latest version that supports your exact adapter. If the PC is offline, download it on another device and transfer it using a USB drive.
4. Install the driver. Extract the downloaded files if necessary, then run the included installer. Alternatively, select Update driver in Device Manager, choose Browse my computer for drivers, and point Windows to the extracted folder.
5. Restart and test. Restart the PC if prompted, connect an Ethernet cable, and confirm that the adapter appears without a warning icon and can access your network.

Keep the driver updated when a compatible release offers relevant fixes or improved Windows support. Before you update a working system, retain a copy of the current driver or create a restore point so you can recover if the new version causes problems.

Common Issues and Fixes

• Install fails or driver won’t start: Use the correct Realtek package for the exact chip (RTL8139/810x vs 8168/8111); do not force an RTL8139 INF onto a PCIe 8168/8111. Run the installer as administrator, reboot, and check Device Manager for a signed-driver or code 10/28 error.
• Device not detected: Confirm the NIC is enabled in BIOS/UEFI, reseat the PCIe card or check onboard LAN is not disabled, and use Device Manager > Scan for hardware changes. If it never appears in Device Manager, test another slot/system—this is usually hardware or PCIe enumeration, not the driver.
• Version conflicts/Windows overwrites driver: Roll back to the previous driver or uninstall the device with “Delete the driver software,” reboot, then install the Realtek/OEM driver. Avoid mixing older 8139 drivers with 8168/8111 PCIe adapters.