The QHMPL 0119 UL is often a dual-band adapter, but Windows may default to 2.4 GHz.

: You can find a basic driver installation guide and community-provided links on Chipset Driver

Locate the setup.exe or install.exe file and run it as an administrator. Manual Update (If Setup Fails): Open Device Manager by right-clicking the Start button. Find the "802.11n WLAN" device under Network adapters .

: Connect the QHMPL USB dongle to a high-speed USB port on your PC. Open Device Manager : Right-click the button and select Device Manager Locate the Device : Look under Other devices

Insert the QHMPL 0119 UL USB adapter into a (not USB 3.0 initially – some drivers have compatibility issues). Windows should now recognize it as a "Realtek 8811CU Wireless LAN 802.11ac USB NIC."

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