Right-click the Windows Start button and select .

: Go directly to the official Realtek Downloads Center website. Search for the RTL8152B driver. Realtek provides safe, updated, and official installers for Windows 7, Windows 10, and Windows 11. Scenario B: It is a Corechip / Davicom Chip

The is a budget-friendly USB 2.0 to 10/100M Fast Ethernet adapter, typically manufactured in China. It is often sold under various generic labels such as JIAPENG Network Technology or as a "WhiteBox" product. Driver Identification and Hardware IDs

Look for an "Unknown Device" or a device with a yellow exclamation mark under . Right-click it and select Update Driver .

In , right-click the unknown device and select Properties . Go to the Details tab. Change the dropdown to Hardware Ids . Look for a string like USB\VID_0FE6&PID_9700 .

– it’s dead and dangerous. Instead:

Click , select the folder where you extracted the files, and ensure the "Include subfolders" box is checked.

Once you have identified your Hardware ID, you can be confident in your next steps. The DM9601 chipset (VID_0FE6&PID_8101) is well-supported.

: This is a specific manufacturing model number. It is widely used for generic, unbranded USB 2.0 to Fast Ethernet (10/100 Mbps) adapters. These are usually enclosed in a blue or white semi-transparent plastic case.

Even with the correct driver, you might encounter a few common issues.

Uninstall device, reboot, and apply the alternate SR9700 chipset driver. Code 43 Error Physical USB fault