Before I start with Reaver or aircrack-ng it is good to use the following commands. First I spoof my mac address, then I ensure that my device is not in use and change my TX power to my device using the CRDA regulatory domain code BO for Bolivia (Country List). Then I make sure injection is working, if it is not I make sure it is. #Change Mac Address Code: Select All sudo airmon-ng stop wlan0 sudo iwconfig wlan0 sudo ifconfig wlan0 down sudo macchanger --mac 00:11:22:33:44:55 wlan0 sudo ifconfig wlan0 #Device Busy Code: Select All sudo iwconfig wlan0 sudo ifconfig wlan0 down sudo iwconfig wlan0 mode monitor sudo ifconfig wlan0 up sudo iwconfig wlan0 sudo airodump-ng wlan0 sleep 30 Code: Select All dmesg| tail -20 sudo rmmod rtl8187 sudo rfkill block all sudo rfkill unblock all sudo modprobe rtl8187 sudo rfkill unblock all sudo ifconfig wlan0 up sudo airmon-ng start wlan0 sudo airmon-ng sudo airodump-ng mon0 sudo ifconfig wlan0 down sudo iwconfig wlan0 mode monitor sudo ifconfig wlan0 up sudo iwconfig wlan0 sudo aireplay-ng -9 wlan0 #Change Txpower Code: Select All iw reg set BO iwconfig wlan0 txpower 30dbm #Test Injection Code: Select All sudo aireplay-ng -9 wlan0