A: Check that you are connected to a 5 GHz network. Also, ensure the USB adapter is plugged into a high-speed port (USB 3.0 if available) and not a USB hub.
Download the driver archive matching your chipset from the links above. qhmpl 0119 ul wifi driver link
You can find generic drivers on the official Quantum Hi-Tech support page. A: Check that you are connected to a 5 GHz network
or identifying the underlying chipset, users can bridge the gap between their hardware and the modern web. chipset version qhmpl 0119 ul wifi driver link