Ubuntu 16.04 WI-FI?

Hi, i am trying to connect Banana PI M3 to wi-fi. But i have an issue. When i write:

iwconfig wlan0 essid NETWORK_ID key s:WIRELESS_KEY

It is telling me,

,Error for wireless request “Set Encode” (8B2A) : SET failed on device wlan0 ; Invalid argument. " I also tried different method with rfkill app, but it didn’t work too. Do you know where is the problem? :frowning: Thank you for reply!

The problem is solved :slight_smile: Thank you for your helps! :smiley: https://wiki.debian.org/WiFi/HowToUse#wpa_supplicant

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