Yeah. Something is very wrong here.Code:
airmon-ng start wlan0
Found 2 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 kill (some of) them!
Process with PID 14665 (dhclient3) is running on interface wlan0
Interface Chipset Driver
wlan0 AR9001/9002/9271 usb (monitor mode enabled)