修改/etc/wpa_supplicant/wpa_supplicant.conf
sudo vim /etc/wpa_supplicant/wpa_supplicant.conf
輸入wifi ap資訊
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev 
update_config=1 
country=TW 
network={ 
  ssid = "wifi_ap_ssidname"
  psk =  "wifi_ap_password"
  key_mgmt=WPA-PSK 
}
存檔,重開機既可