9

I have Ubuntu 14.04 LTS installed on my PC. I have created some new accounts and then after I logged in to my own account there was no internet connection. When I try to open the network settings I faced this error

The system network services are not compatible with this version.

I have tried starting the NetworkManager manually with this command

sudo service network-manager start

but it has not worked.

Can you please help me?

andrew.46
  • 39,359
Erkin Zahedi
  • 91

4 Answers4

11

Network Manager Crash on ubuntu 14.04

After upgrade from proposed repository the next packages: libnl-3-200, libnl-genl-3-200 and libnl-route-3-200.

You'll need to downgrade your libnl-3 packages:

sudo apt-get install libnl-3-200=3.2.21-1 libnl-genl-3-200=3.2.21-1 \ 
libnl-route-3-200=3.2.21-1

if you can not install these packages or have trouble making the downgrade you can manually download them from here(from my account):

https://mega.nz/#F!7kchgI7Z!U5Y_M80OSSS5DZKfZGrC3g

Steps:

  1. Download the 3 files on another computer.
  2. Copy them to a flashdrive.
  3. Put the flashdrive in to the affected computer.
  4. Copy the 3 files into a new folder.

  5. Open a terminal in that folder and run

    sudo dpkg -i lib*.deb
sudo reboot

    And you may need to apply a hold until a fix for NetworkManager can be released.

    sudo apt-mark hold libnl-3-200 libnl-genl-3-200 libnl-route-3-200

    And after the fix:

    sudo apt-mark auto libnl-3-200 libnl-genl-3-200 libnl-route-3-200

More info:

muru
  • 207,228
Paul Iulian
  • 111
0

This error message is generally related to bad /etc/network/interfaces file. Try following

sudo cp /etc/network/interfaces /etc/network/interfaces.bak
sudo nano /etc/network/interfaces

Remove everything from the file and put

auto lo
iface lo inet loopback

Then reboot the system. It should work.

muru
  • 207,228
Tanmay
  • 16
0

I have the same issue. Seems that a recent update is the cause. Lots of messages in the syslog for network-manager being killed by segv (segmentation fault) signal. I believe the update for network manager has a segmentation violation bug somewhere.

I managed to resolve my issue using the advice given by Paul Iulian. The link in his post does not work, so I downloaded the packages from http://packages.ubuntu.com/

Search for the names of the packages libnl-3-200, libnl-genl-3-200 and libnl-route-3-200

Regards, Jordan.

jordan
  • 1
-2

You can try this in your terminal

sudo ifconfig eth0 up // Make your interface up
sudo dhclient  // assign Ipaddress by dhcp
sudo apt-get install network-manager // Now install latest network-manager
sudo service network-manager restart //restart network-manager

after your try it, update you network manager.

muru
  • 207,228
Adi Brad
  • 1