Raspberry Pi 3; keine wlan Verbindung;

# interfaces(5) file used by ifup(8) and ifdown(8)

# Please note that this file is written to be used with dhcpcd
# For static IP, consult /etc/dhcpcd.conf and 'man dhcpcd.conf'

# Include files from /etc/network/interfaces.d:
source-directory /etc/network/interfaces.d

#auto lo

auto eth0
allow-hotplug eth0
iface lo inet loopback
iface eth0 inet manual
iface eth0 inet static
address 192.168.xxx.xxx
gateway 192.168.xxx.xxx
netmask 255.255.255.0


#auto wlan0
#allow-hotplug wlan0
#iface wlan0 inet manual
#iface wlan0 inet static
#address 192.168.xxx.xxx
#netmask 255.255.255.0
#gateway 192.168.xxx.xxx
# wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf


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


#allow-hotplug wlan1
#iface wlan1 inet manual
# wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

country=DE
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
network={
ssid="MeinNetzwerkName"
psk="MeinNetzwerkSchlüssel"
proto=RSN
key_mgmt=WPA-PSK
pairwise=CCMP
auth_alg=OPEN
}