Wifi and Bluetooth connection problem

Hi,
While configuring the wifi on Artik 5 ver 3.2 I am using the command wpa_cli scan_results but instead of getting the list of available wifi connections I am getting "Failed to connect to non-global ctrl_ifname: (nil) error: No such file or directory".

Also while using bluetooth on the same Artik 5 I am getting "No default controller available" after the scan on command in the terminal.

Please anyone who is facing the same problem or knows about the solution please help.

P.S - I also have tried the solution that is given in the Artik Documentation (https://developer.artik.io/documentation/developer-guide/configuring-wifi-on-artik-10.html) but it is not working.