[SOLVED] NM Applet in KDE doesn't recognize Wi-Fi

vicgua · 2014-06-19 17:46:18

Hi,
I've done a new install. In the Live CD, my card was recognized by wifi-menu, but the internet connection wasn't stable, however, this is normal in all my home's Wi-Fi (my router isn't the eighth wonder of the world ). The I installed a DE (KDE) successfully by wifi. Now, I can connect to the Internet via wifi-menu, but the network-manager applet for KDE (kdeplasma-applets-plasma-nm doesn't recognize my Wi-Fi: when I click on it, it displays five buttons:

Wireless: DISABLED (it should be enabled and on, but I can't click on it)
Mobile broadband (disable: my computer can't connect to mobile broadband)
Airplane mode (OFF)
Refresh & Settings

I've searched on Google but I haven't found anything. In this forum there's another thread in the forumwith a similar problem, but it's not the same and this solution hasn't worked for me.
Thanks in advance.

Last edited by vicgua (2014-06-20 15:13:20)

xero · 2014-06-19 18:06:24

here's how i setup wifi for nm-applet:

verify hosts file
check the configuration of your `/etc/hosts` file, a valid configuration should look something like this:

#<ip-address>    <hostname.domain.org>    <hostname>
127.0.0.1      localhost.localdomain    yourHostname
::1            localhost.localdomain    yourHostname

install the network tools

sudo pacman -S wpa_supplicant  wireless_tools networkmanager network-manager-applet gnome-keyring

make the networkmanager start on boot:

sudo systemctl enable NetworkManager.service

disable dhcpcd
since networkmanager wants to be the one who handles the dhcpcd related stuff, you have to disable and stop dhcpcd:

sudo systemctl disable dhcpcd.service
sudo systemctl disable dhcpcd@.service
sudo systemctl stop dhcpcd.service
sudo systemctl stop dhcpcd@.service

enable wpa_supplicant, if you want to use your wireless connection:

sudo systemctl enable wpa_supplicant.service

add your user to the network group:

gpasswd -a USERNAME network

turn off your network interface controllers, (use your own device names from `ip link` if not eth0 and wlan0)

ip link set down eth0
ip link set down wlan0

start wpa_supplicant:

sudo systemctl start wpa_supplicant.service

start networkmanager:

sudo systemctl start NetworkManager.service

reboot

systemctl reboot

after that i had to manually press my hardware wifi key once to enable it, after that everything worked.
hope that helps!

Last edited by xero (2014-06-19 18:09:04)

vicgua · 2014-06-20 15:12:41

Thank you!
I'm a bit ashamed: During the installation I forgot to start/enable NM, and I should have checked before asking. By the by, I'm using KDE and its network manager applet (pkg: kdeplasma-applets-plasma-nm), but thanks anyway.
P.S.: Sorry for my English

Last edited by vicgua (2014-06-20 15:12:58)

xero · 2014-06-20 19:51:10

no problem, glad i could help. don't be ashamed, we all make mistakes.

Arch Linux

#1 2014-06-19 17:46:18

[SOLVED] NM Applet in KDE doesn't recognize Wi-Fi

#2 2014-06-19 18:06:24

Re: [SOLVED] NM Applet in KDE doesn't recognize Wi-Fi

#3 2014-06-20 15:12:41

Re: [SOLVED] NM Applet in KDE doesn't recognize Wi-Fi

#4 2014-06-20 19:51:10

Re: [SOLVED] NM Applet in KDE doesn't recognize Wi-Fi

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