I am using Raspberry Pi 3 with Ubuntu Mate 16. I followed Raspberry Pi Documentation to set up the WiFI in it. But, currently, I am facing a problem that WiFi in RPi3 is not getting connected on start up (every time it is powered on). When I type 'ifconfig' in terminal, I cannot find any IP address assigned for 'wlan0'.
To connect it to WiFi again, I have to run the following commands :
sudo ifdown wlan0
sudo ifup wlan0
After running the above commands, wifi is again connected (when 'ifconfig' is run, I can find an IP address for 'wlan0').
Since I am trying to access RPi3 with a Remote Computer through SSH (via WiFi), this issue is bothersome. Could someone help me with this regard?
Thanks in advance.