Network is not auto-enabled after start up

Question

After normal system start no network is detected. If I plug off ethernet cable and insert usb wi-fi, no new device is detected either.

However if I run system in recovery mode and enable networking in recovery menu, the internet works fine. The problem is I must do it every single time I start my computer.

ifconfig
sudo lshw -C network

prints this: http://pastebin.com/wcJztG9R

In 2nd case I can see "*-network DISABLED". Tried to enable it in network menu, but nothing is detected.

Seems strange to me. I do not remember changing any config files or network settings. I just restarted my PC and network stopped working.

I use Ubuntu 14.0.4 LTS

A lot of people have these problems these days: http://askubuntu.com/questions/772317/network-manager-crashes/772324 — nobody, May 15 '16 at 12:45

You'reAGitForNotUsingGit · Answer 1 · 2016-05-15T11:59:05.117

0

[Note: if you don't have your WiFi adapter plugged in, omit the commands containing wlan0]

After boot, try running these commands:

sudo su
service network-manager stop
ifconfig wlan0 down
ifconfig eth0 down
ifconfig wlan0 up
ifconfig eth0 up
service network-manager start

edited May 15 '16 at 11:59

answered May 15 '16 at 11:50

You'reAGitForNotUsingGit

14,809

This did not work. After recovery it even disabled working network and did not re-enabled it. – robson021 May 15 '16 at 13:56
@user138974 - Alright. After boot try running sudo service network-manager restart – You'reAGitForNotUsingGit May 15 '16 at 13:59
Tried it and got info about process running, but still no network connection. Do you think distro-upgrade may help and bring proper configuration? – robson021 May 15 '16 at 14:59
@user138974 - I'd see if Software Updater has any updates for you first. – You'reAGitForNotUsingGit May 15 '16 at 15:41

score 0 · Accepted Answer · answered May 23 '16 at 11:56

0

After a while system repaired itself. What goes around comes around.

answered May 23 '16 at 11:56

robson021

1

Network is not auto-enabled after start up

2 Answers2