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I have Raspberry Pi 3 and I tried to config for auto connect to wifi like this example

http://weworkweplay.com/play/automatically-connect-a-raspberry-pi-to-a-wifi-network/

but when I finish, I got "No wireless interfaces found" when I click wifi symbol. However if I comment them out and back to default config( no auto wlan0 ... ), my wifi is back.

How can I fix this ?

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    Please edit your question and include the config files you changed with the commented out textincluded. – Steve Robillard Jun 19 '17 at 10:35
  • Can you explain HOW people find these obsolete tutorials and WHY they choose to follow them rather than the Official Raspberrypi.org instructions? Try How do I set up networking/WiFi/Static IP – Milliways Jun 19 '17 at 10:37
  • here is my interface config source-directory /etc/network/interfaces.d auto wlan0 #auto lo iface lo inet loopback #iface eth0 inet manual allow-hotplug wlan0 #iface wlan0 inet manual iface wlan0 inet dhcp wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf iface default inet dhcp #allow-hotplug wlan1 #iface wlan1 inet manual # wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf – 3ORZ Jun 19 '17 at 11:09
  • @Milliways I'm very new in linux configuration I just follow my search – 3ORZ Jun 19 '17 at 11:11
  • These details belong in your question (as requested) not the comments. – Steve Robillard Jun 19 '17 at 11:36
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Restore Interfaces file. Then, connect to wifi manually and now into the interfaces file append this auto wlan0 iface wlan0 inet dhcp wpa-ssid {ssid} wpa-psk {password}

this work for me.

Lo dejo en español ya que mi ingles es malo y por ahi no se entiende que quise decir. Restaura el archivo interfaces como viene ni bien instalas el SO. Así vuelve a funcionar el receptor WiFi y podes conectarte a la red (yo lo hice mediante la interfaz grafica) Una vez conectado al Wifi que queremos que conecte automaticamente podemos modificar el archivo interfaces y ahora la proxima vez que prendamos va a funcionar.

Sorry for my bad English.

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