Unblock: sudo rfkill unblock wifi Reinstall firmware: sudo apt install --reinstall firmware-ath9k-htc
sudo airmon-ng check kill Then, enable monitor mode on your interface (replace wlan0 with your actual interface name):
sudo aireplay-ng -9 wlan0mon Successful injection looks like: install atheros ar9271 driver kali linux
sudo modprobe -r ath9k_htc sudo modprobe ath9k_htc Plug in your adapter. Check if the interface appears:
Then update initramfs:
Update your repository list and install the necessary packages:
Bus 002 Device 003: ID 0cf3:9271 Qualcomm Atheros Communications AR9271 Wireless Network Adapter If you see ID 0cf3:9271 , you have genuine AR9271 hardware. Note: Some counterfeit adapters use the same ID but different internals; this guide may still work, but results may vary. Even though ath9k_htc is built-in, we need supporting tools and firmware packages. Unblock: sudo rfkill unblock wifi Reinstall firmware: sudo
No answer from target AP If injection fails, the most reliable solution is to recompile the ath9k_htc driver with injection optimizations and disable power management. Disable power management (temporary): sudo iw dev wlan0 set power_save off Make it permanent: Create a configuration file: