Qualcomm Atheros AR8171 8175 PCI E Gigabit Ethernet Controller Driver

The Qualcomm Atheros AR8171 8175 PCI E Gigabit Ethernet Controller driver enables Windows to communicate with your computer’s wired network adapter, supporting Ethernet access to your router or local network. You may need it after reinstalling Windows, if the adapter appears as an unknown device, or when a missing or incompatible driver prevents a wired connection.

Key Features

• Wired network connectivity: Allows Windows to recognize and use the Qualcomm Atheros Ethernet controller for internet access and local network communication.
• Gigabit Ethernet support: Enables the adapter’s gigabit capabilities when used with compatible network equipment and cabling; actual speeds depend on your network setup.
• Windows networking integration: Works with Windows network settings so you can configure the connection and troubleshoot adapter issues.
• Version-specific compatibility: Driver packages may target Windows 11, 10, 8, or 7. Check the individual package’s supported systems and architecture rather than assuming one release supports every version.

How to Install Qualcomm Atheros AR8171 8175 PCI E Gigabit Ethernet Controller Driver

1. Confirm your adapter and Windows version. Open Device Manager and look under Network adapters or Other devices. Check the adapter’s properties and hardware IDs if its name is unclear, then confirm your Windows version and whether it is 32-bit or 64-bit.
2. Choose a matching package. Before starting your Qualcomm Atheros AR8171 8175 PCI E Gigabit Ethernet Controller driver download for Windows, verify that the package supports your hardware and operating system. For Windows 10/11, pay particular attention to the listed compatibility.
3. Download and extract the files. Use a trusted free download source, preferably your computer manufacturer’s support page when available. If Ethernet is unavailable, download using another connection or computer and transfer the package by USB.
4. Install the driver. Run the included installer, if provided. Otherwise, right-click the adapter in Device Manager, select Update driver, choose Browse my computer for drivers, and point Windows to the extracted folder.
5. Restart and test. Restart if prompted, connect an Ethernet cable, and check that the adapter appears without a warning icon. Test access to your router or the internet.

Keep the driver updated when a compatible update addresses a problem or improves system compatibility. Choose the latest version approved for your specific adapter and Windows release—not simply the newest package available. If an update causes connection issues, use Device Manager’s Roll Back Driver option when available.

Common Issues and Fixes

• Install fails or shows Code 28: Extract the driver package and install the INF via Device Manager > Update driver > Browse, or right-click the INF and select Install. Run setup as administrator.
• Device not detected: Check that the NIC is enabled in BIOS/UEFI, reseat the PCIe card, and look under Device Manager’s “Other devices” or hidden devices. Install current chipset/PCIe drivers.
• Version conflicts or Code 10: Uninstall any existing Atheros/Qualcomm Ethernet driver, select “Delete the driver software,” reboot, then install the correct AR8171/8175 package. Avoid mixing unrelated Atheros driver versions.