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After installing Ubuntu 14.04 the wifi icon and option just disappeared. I have tried to reboot it and searching the settings for it, but it does not let me connect to a wifi connection in any way. The only way to connect to the internet is with a wired connection. So how can I fix this and is this a bug or something that has to do with the version? I installed it on a Dell Inspiron 910 mini netbook.

user287577
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2 Answers2

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First you have to stop network manager from background:

sudo service network-manager stop

Remove file on /var/lib/NetworkManager/NetworkManager.state path:

sudo rm /var/lib/NetworkManager/NetworkManager.state

Start network manager back:

sudo service network-manager start

Source

Liso
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  • I was heading this way lol. This should work. If not, he might be missing a driver for his wireless card. – Samuel Cavazos Jun 02 '14 at 05:17
  • @SamuelCavazos Sorry i post it first, i know this ways from upubuntu. lol – Liso Jun 02 '14 at 05:21
  • It's not a problem at all. Excellent answer. – Samuel Cavazos Jun 02 '14 at 05:22
  • ok... i stopped the network manager and put in the sudo password but when i tried to put the Remove file on command it says access denied? – user287577 Jun 02 '14 at 05:38
  • please add output of your access denied – Liso Jun 02 '14 at 05:55
  • it says output is currently not installed, i typed the command it gave me to install it but it could not locate it – user287577 Jun 02 '14 at 06:13
  • i mean what error you got on terminal when enter sudo password – Liso Jun 02 '14 at 07:45
  • Please do what is in the accepted answer in the link below so we may see the information needed to help diagnose the issue. http://askubuntu.com/questions/425155/my-wireless-wifi-connection-does-not-work-what-can-i-do – Wild Man Jun 02 '14 at 15:10
  • For newer versions of ubuntu using systemd rather than upstart, the commands to start and stop a the network manager service are systemctl stop network-manager and systemctl start network-manager. (Note that systemctl does not need to be run with sudo, as it will prompt you for sudo access itself.) – AJMansfield Oct 01 '15 at 18:08
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I was facing this very same issue. Please note that wireless was working fine all this time, its just the missing icon.

Here is what worked for me. Unity -> Startup Applications - and check "Indicator Application" (if its not already checked.) Next install following two packages: indicator-applet and indicator-network.

sudo apt-get install indicator-applet indicator-network

I am using Ubuntu 14.04 64bit on Dell Inspiron 1564.

David Foerster
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user348455
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