I have tried using the on-board Wi-Fi as well as a USB Wi-Fi adapter on my Raspberry Pi 3 Model B.

I am using Ubuntu Mate 16.04. After putting in the Wi-Fi password, I see the Wi-Fi showing up as connected. In about 6 or so seconds, the authentication window pops up and wants me to enter the password again. It keeps on repeating.

I have tried setting up the Wi-Fi manually as follows:

sudo nano /etc/wpa_supplicant/wpa_supplicant.conf network { ssid = "mySSID" psk = "my password" }

Please suggest a solution if you have solved this problem.

  • Your best bet for functioning software is to use what everyone else is using. Try rasbian instead. – Thorbjørn Ravn Andersen Jun 5 '17 at 16:52

For me, worked by restarting the service. Do this: sudo service NetworkManager restart

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Ubuntu Mate uses NetworkManager which stores its configuration files in /etc/NetworkManager/system-connections

If you want to use MATE set it up in the normal manner via the GUI, rather than trying to fiddle with the rather complex NetworkManager files.

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This Answer is TOTALLY wrong and misleading! NetworkManager does NOT use /etc/network/interfaces

I use a similar method as on Raspbian.

I put the following to /etc/network/interfaces (I think this is the part you are missing):

auto wlan0
iface wlan0 inet dhcp
wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf

And then I put the details to the /ect/wpa_supplicant/wpa_supplicant.conf:



It works for me with Raspberry Pi 3 Model B and Ubuntu Mate 16.04.

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