Install firmware-ath9k-htc by entering the following commands in the terminal:
sudo apt update sudo apt install firmware-ath9k-htc
Description:
QCA ath9k-htc Firmware
Opensource version of QCA ath9k-htc Firmware. Supported chips are: ar9271 and ar7010
Homepage: https://github.com/qca/open-ath9k-htc-firmware
Version: 1.4.0-97-g75b3e59+dfsg-1
Section: universe/misc