Debian 9 - installed 2 days ago. Installed firmware-misc-nonfree_20161130-3_all.deb. Os is recognizing wifi adapter and network manager is showing all the available connections. No matter what I try, it won't connect. Any tips or solutions ? Thanks

  • Try disabling bluetooth. If still it doesn't work than try live booting some other distro and check if WiFi is working. You can try Antergos, Fedora – Arpit Agarwal Oct 12 '17 at 5:22
  • @ArpitAgarwal Wifi works, i have been using that device for quite some time now. – Sheldon Cooper Oct 12 '17 at 5:28
  • The problem is with the WiFi driver. Can you tell on which OS was WiFi working earlier? – Arpit Agarwal Oct 12 '17 at 5:31
  • @ArpitAgarwal works with Windows 7 8 and 10 – Sheldon Cooper Oct 12 '17 at 5:32
  • 1
    Run killall wapsupplicant , wpa_supplicant -B -i your-interface -c <(wpa_passphrase your-SSID your-pass) then dhclient your-interface . – GAD3R Oct 12 '17 at 11:39

Edit NetworkManager config:

sudo nano /etc/NetworkManager/NetworkManager.conf

Then add below lines:


Restart NetworkManager service:

sudo systemctl restart NetworkManager
  • Thanks for the answer. But sorry I have no way of verifying it. I am a happy Arch Linux user now. – Sheldon Cooper Dec 30 '17 at 19:48
  • I have tried that and it works, debian is awesome! – burzintaj Dec 30 '17 at 19:58
  • Can someone explain what this does and why it works? – user1028270 Jun 1 at 10:54

In my own case, that could be fixed by

 $ apt install gnome-keyring

Actually I could connect to any previously saved networks, but when trying to connect to something else, nm-applet would not be able to popup the password input box, hence silently prevented me to connect to the network.

Similar report: https://bbs.archlinux.org/viewtopic.php?id=185742.

protected by Community Sep 22 '18 at 20:47

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