Intel 82577LC Gigabit Network Connection Driver

The Intel 82577LC Gigabit Network Connection driver enables Windows to communicate with your Intel wired Ethernet adapter and manage network connectivity. You may need it after reinstalling Windows, when Device Manager lists an unrecognized Ethernet controller, or when troubleshooting a missing wired connection.

Key Features

• Wired Ethernet connectivity: Supports the adapter’s connection to compatible routers, switches, and local networks, with speeds up to 1 Gbps when the network equipment and cable support them.
• Windows device recognition: Helps Windows identify the Intel 82577LC correctly rather than displaying it as an unknown network device.
• Adapter configuration: Provides access to supported network settings through Windows, with available options depending on the driver package and system.
• Connection troubleshooting: Replacing a missing, damaged, or unsuitable driver may resolve adapter-related connectivity problems, though cable and network faults require separate checks.

How to Install Intel 82577LC Gigabit Network Connection Driver

1. Confirm your adapter and Windows version. Open Device Manager and look under Network adapters. If the device is unidentified, check its hardware IDs under Properties > Details. Confirm whether Windows is 32-bit or 64-bit.
2. Check package compatibility. Before choosing an Intel 82577LC Gigabit Network Connection driver download for Windows, verify that the package explicitly includes this adapter and your operating system. For Windows 11, 10, 8, or 7, do not assume that one package supports every version. Windows 10/11 compatibility deserves particular attention because this is an older controller.
3. Download a trusted package. Prefer your computer manufacturer’s support resources or an applicable Intel package. Choose the latest version that actually supports your hardware and Windows release—not simply the newest Intel network driver. A free download should not require a paid driver-update utility.
4. Install the driver. Run the included installer, if available. For an extracted driver package, open Device Manager, right-click the adapter, select Update driver, and choose Browse my computer for drivers to locate the extracted folder.
5. Restart and test. Restart if prompted, connect an Ethernet cable, and verify that the adapter appears without a warning icon. Test access to your local network and the internet.

Keep your driver updated when a compatible release addresses a problem or offers a relevant improvement. Before an update, retain the working installer or create a restore point so you can recover if connectivity changes. If your current connection is stable and no newer compatible driver exists, avoid forcing an unsupported package.

Common Issues and Fixes

• Install fails or Setup exits early: The 82577LC needs an Intel PRO/1000 package that explicitly lists this adapter and your Windows version/bitness. Run Setup as administrator; if Windows blocks it as “newer driver installed,” use Device Manager → Update driver → Browse → Let me pick → Have Disk and select the package’s INF.
• Adapter not detected: Enable the integrated NIC in BIOS/UEFI, then check Device Manager for an unknown or disabled device. Confirm link LEDs, cable, and switch port.
• Version conflicts/Code 10 or 31: Uninstall the current adapter driver and delete its driver software, reboot, then install only one Intel PROSet/driver version. Roll back if a Windows update caused the conflict.