Hello,

I've read a few threads in here but haven't found a solution. I installed Kali-Linux 2016.2 within VirtualBox 5 on Kubuntu 16.10. I have a wifi-usb-stick that works flawlessly with Kubuntu and I also managed to get it to work from within VirtualBox. However, it seems I can't enable monitored mode with airmon-ng.

ifconfig shows this for the wifi-stick:

Code:
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.178.34  netmask 255.255.255.0  broadcast 192.168.178.255
        inet6 fe80::4eee:aa3c:2a92:d605  prefixlen 64  scopeid 0x20<link>
        ether 24:05:0f:95:45:15  txqueuelen 1000  (Ethernet)
        RX packets 694  bytes 86020 (84.0 KiB)
        RX errors 0  dropped 7  overruns 0  frame 0
        TX packets 130  bytes 17753 (17.3 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
airmon-ng shows me this:

Code:
PHY	Interface	Driver		Chipset

null	wlan0		r8712u		Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter
This is what I did (according to a tutorial):

Code:
ifconfig wlan0 down
(no output)

Code:
airmon-ng start wlan 0
giving me this output:

Code:
Found 3 processes that could cause trouble.
If airodump-ng, aireplay-ng or airtun-ng stops working after
a short period of time, you may want to run 'airmon-ng check kill'

  PID Name
 2335 NetworkManager
 2347 wpa_supplicant
 2455 dhclient

PHY	Interface	Driver		Chipset

null	wlan0		r8712u		Realtek Semiconductor Corp. RTL8191SU 802.11n WLAN Adapter
I also used "airmon-ng check kill", but this didn't help anything, it just disabled the network-connection completely. So does anybody have any hints on what else I could try? Tia.