Disconnected you are now offline

Question

Every time i login this message appears i cant connect to internet on ubuntu.I tried disabling and reenabling network manager but it didnt worked.

03:00.0 Network controller [0280]: Intel Corporation Centarino Wireless-N 1000 [ Condor Peak] [8086:0083]
 Subsystem: Intel Corporation Centario Wireless-N1000 BGN [8086:1325]

@DavidCole can u please explain how should i describe you my problem. please i havent use ubuntu before.I am worried because i need to complete my assignments and i am not getting any solution :( — user5441403, Oct 20 '15 at 18:09
@Pilot6 i have windows 7 installed too along with ubuntu and i often use wifi on my mobile but i cant connect on ubuntu.As soon as i login into my Ubuntu it says "Disconnected You Are Now Offline" please give me possible solution :( — user5441403, Oct 20 '15 at 20:01
Now it is a bit more clear. You use Wi-Fi. Now we need to find out what Wi-Fi module do you have. Please [edit] your question and add output of lspci -knn | grep Net -A2 terminal command. — Pilot6, Oct 20 '15 at 20:39
03:00.0 Network controller [0280]: Intel Corporation Centarino Wireless-N 1000 [ Condor Peak] [8086:0083] Subsystem: Intel Corporation Centario Wireless-N1000 BGN [8086:1325] 04:00.0 Ethernet Controller [0200]: Qualcomm Atheros AR8152 v1.1 Fast Ethernet [1969:2060] (rev c1) — user5441403, Oct 21 '15 at 03:41
@Pilot6 03:00.0 Network controller [0280]: Intel Corporation Centarino Wireless-N 1000 [ Condor Peak] [8086:0083] Subsystem: Intel Corporation Centario Wireless-N1000 BGN [8086:1325] 04:00.0 Ethernet Controller [0200]: Qualcomm Atheros AR8152 v1.1 Fast Ethernet [1969:2060] (rev c1) — user5441403, Oct 21 '15 at 03:42
What is the Ubuntu version? And what is the output of uname -r? — Pilot6, Oct 21 '15 at 13:07
@user5441403 -edit- the question. Do not use comments to post information, — Rinzwind, Oct 21 '15 at 13:10
@Pilot6 its not working bro and output of uname -r is 3.16.0-45-generic — user5441403, Oct 21 '15 at 13:15
And also please add this output TO YOUR QUESTION grep iwlwifi /etc/modprobe.d/* — Pilot6, Oct 21 '15 at 13:23
@Pilot6 no as i am using wifi data card its a dongle that comes with wifi — user5441403, Oct 21 '15 at 13:23
@Pilot6 no i cant i am typing all the outputs:( and that grep command which u said right now didnt gave any output :( — user5441403, Oct 21 '15 at 13:26
@Pilot6 no output came from this command :( m worried please help pilot — user5441403, Oct 21 '15 at 13:29
@Pilot6 my net is working now thanks but that three commands which you mentioned are not working — user5441403, Oct 21 '15 at 14:23
What do you mean "not working"? And if you problem is solved. accept the answer by clicking the check sign at the left. — Pilot6, Oct 21 '15 at 14:24
@Pilot6 bro that three command are still not working and i cant update any apps it says package of system is broken — user5441403, Oct 21 '15 at 14:26

Pilot6 · Accepted Answer · 2015-10-21T13:48:55.833

It looks like the iwlwifi kernel module is not loaded.

Connect to internet an alternative way and run in terminal:

sudo apt-get install linux-generic-lts-utopic

and reboot.

If you can't connect to internet an alternative way, then download these files:

http://mirrors.kernel.org/ubuntu/pool/main/l/linux-lts-utopic/linux-image-3.16.0-51-generic_3.16.0-51.69~14.04.1_i386.deb
http://security.ubuntu.com/ubuntu/pool/main/l/linux-lts-utopic/linux-image-extra-3.16.0-51-generic_3.16.0-51.69~14.04.1_i386.deb
http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta-lts-utopic/linux-headers-generic-lts-utopic_3.16.0.51.42_i386.deb

Copy them to your Ubuntu Home folder and run in terminal

sudo dpkg -i linux*.deb

Reboot.

If your wifi starts working, run:

sudo apt-get update
sudo apt-get install linux-generic-lts-utopic
sudo apt-get upgrade

You will have the kernel updated. If the wireless still does not work, run:

sudo tee /etc/modprobe.d/iwlwifi-opt <<< "options iwlwifi 11n_disable=1"

and reboot again.

http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta-lts-utopic/linux-headers-generic-lts-utopic_3.16.0.51.42_i386.deb dosen't work!!!!! — pedram shabani, Mar 20 '18 at 13:29

Disconnected you are now offline

1 Answers1

Linked