Network managers can block monitor mode.

If all five pass, your AR9271 driver installation is perfect.

Look for type monitor .

driver and its corresponding firmware. Use the following commands to install it from the official repositories: Update your package list: sudo apt update Use code with caution. Copied to clipboard Install the Atheros firmware package: sudo apt install firmware-atheros Use code with caution. Copied to clipboard

sudo apt install linux-headers-$(uname -r) sudo modprobe -r ath9k_htc sudo modprobe ath9k_htc