Download the the 802.11n (Wireless LAN) network driver for Windows, MacOS, and Linux operating systems from this page and install it easily by following our short step-by-step installation guide provided down below.
Read Realtek RTL8139 cases where Ethernet is missing after Windows reinstall, the adapter appears as unknown Ethernet Controller, Code 10 appears, no internet works after driver install, cable unplugged shows, Windows update changes the driver, or RTL8139/810x driver selection is confusing.