RPi - Could not communicate with wpa_supplicant: error n2 wifi

rpiwpafix.txt

Solution

I referred to this official forum.

Raspbian Stretch: Wifi not starting on boot – Raspberry Pi Forums

First,

sudo vim /etc/network/interfaces

and, you should write in bottom

allow-hotplug wlan0
iface wlan0 inet manual
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf
This will allow wlan at startup. afterwards,

sudo systemctl enable wpa_supplicant.service
restart wpa_supplicant

sudo reboot now

Just what I was seeking! My RPi Zero (not w) needed a WiFi dongle. OK, I got one, still didn't work. Searched and eventually found this. I would rewrite this for clarity.

• make a copy of /etc/network/interfaces

  sudo cp /etc/network/interfaces /etc/network/interfaces.original

• append to the file /etc/network/interfaces

  allow-hotplug wlan0
  iface wlan0 inet manual
  wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

• enable the wpa_supplicant service and restart

  sudo systemctl enable wpa_supplicant.service
  sudo systemctl restart wpa_supplicant

• restart the system

  sudo reboot now

Thanks for being there

Had the same problem on a RPi 2. After a long search finnaly found this answer - THANK YOU SO MUCH!!!

Just made my setup work and I just got how wpa_supplicant is used. Thanks alot.

I was searched by 4hs. I followed your steps and I could fixed. when I went to save the gist on bookmarks I saw that I had alredy saved in the past.
thanks twice times!!

Thank you so much !!!

Thank you. You made my day

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