If the driver doesn’t auto-match:

→ Network adapters → Look for missing or "Ethernet Controller" with yellow exclamation mark.

: If the installer fails, use Device Manager to manually "Add legacy hardware" or update the driver by pointing to the extracted INF file path.

Because this chipset predates Windows 7, you might only find drivers intended for Windows Vista or Windows XP.

Microsoft often hosts "legacy" drivers that are no longer available on manufacturer sites. Visit the Microsoft Update Catalog. Search for "Realtek Fast Ethernet."

Press the , type devmgmt.msc , and press Enter . Expand the Network adapters section.

In the digital era, an operating system’s ability to communicate with its hardware is the cornerstone of a functional workstation. For legacy systems running , the Realtek RTL8201CL LAN PHY Go to product viewer dialog for this item.

Ensure "Include subfolders" is checked, click "Next," and Windows will install the driver.

If you just installed Windows 7 and have (because the LAN driver is missing), you are in a chicken-and-egg scenario. Here is the top workaround:

While natively supported in Windows XP and Vista, Windows 7 often requires a manual install using generic Realtek PCIe FE/GBE Family drivers or original motherboard chipset packages.

Once you have downloaded the Vista driver installer (usually an .exe file):

Microsoft maintains a massive public repository of certified drivers. You can visit the Microsoft Update Catalog, search for "RTL8201CL," and download the cabinet (.cab) file explicitly verified for Windows 7.

Installing the legacy Windows Vista driver in Compatibility Mode.