Kali Linux Fern Wifi Cracker No Wireless Interface Was Found (2025)

For other chipsets, check:

sudo airmon-ng start wlan0 sudo airodump-ng wlan0mon | Problem | Solution | |----------------------------------|-----------------------------------------------| | No interface shown in iwconfig | Plug in a compatible USB Wi-Fi adapter | | Interface exists but Fern fails | Run sudo airmon-ng check kill + manual monitor mode | | Still not working | Use Wifite or aircrack-ng instead of Fern | | Internal card only | Buy a supported external adapter (~$20–40) | Final Note Fern WiFi Cracker is old and less maintained. Many modern Kali users skip it in favor of Wifite (simpler) or aircrack-ng (more control). If you’re learning Wi-Fi penetration testing, focus on those instead. Kali Linux Fern Wifi Cracker No Wireless Interface Was Found

| Chipset | Example Adapter | Monitor Mode | Packet Injection | |---------------|--------------------------------|--------------|------------------| | | Alfa AWUS036ACH | Yes | Yes | | RTL8187 | Alfa AWUS036H (legacy) | Yes | Yes | | AR9271 | TP-Link TL-WN722N (v1 only) | Yes | Yes | | MT7612U | Panda Wireless PAU09 | Yes | Yes | For other chipsets, check: sudo airmon-ng start wlan0

sudo fern-wifi-cracker Or if using the GUI launcher, make sure it runs as root. If you still get the error, your internal card likely won’t work. Recommended adapters (chipset must be supported): | Chipset | Example Adapter | Monitor Mode

After running Fern, you can restart networking with: