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I'm using Debian 9 Stretch, i provided my wifi ssid and pass on the installing process, and it works, but NetworkManager doesn't work properly finding another wifi.

This is my /etc/NetworkManager/NetworkManager.conf file.

[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=true

And this, my /etc/network/interfaces file.

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug wlp1s0
#if something dies delete this line
#auto wlp1s0 
iface wlp1s0 inet dhcp
    wpa-ssid .XT1040
    wpa-psk  ********

This is my /etc/wpa_supplicant.conf file.

ctrl_interface=DIR=/run/wpa_supplicant GROUP=wheel
update_config=1
  • Does NM find (and use) the WiFi that you specified at installation time? – roaima Dec 1 '18 at 7:56
  • Yes, all interfaces were detected and working, in fact i was able to scan directly from terminal – Sebastian Altamirano Dec 1 '18 at 19:54
0

I finally found the solution

allow-hotplug wlp1s0

Is the same than

auto wlp1s0

So, i just commented it and its working!

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