I have deleted accidentally the network manager from Ubuntu 13.04 on my HP Pavilion 13.04. Now I am not able to connect to the internet using my laptop. I have downloaded the two .deb packages of network manager.

1: network-manager-dbg_0.9.8.0-0ubuntu6_amd64.deb

2: network-manager-gnome_0.9.8.0-1ubuntu2_amd64.deb

I have followed the instructions from the following site. Network manager deleted

But when I unpack the network-manager-gnome from the terminal, it says:

dpkg: dependency problems prevent configuration of network manager-gnome: network-manger-gnome depends on network-manager (>= 0.9.8); Package network-manager is not installed. dpkg: error processing network-manager-gnome (--install): dependency problems - leaving unconfigured

I also tried to install the network-manager package by double clicking on it, but the Software Center says:

New software cant be installed, there is a problem eith the software currently installed. Do you want to repair this problem now?

But there is no network access to do the repair.

What to do now?

  • The command "sudo dpkg -i /var/cache/apt/archives/network-manager_*.deb" could be useful but the package is not present in the archives folder of ubuntu. – Zuhran Oct 23 '13 at 11:20

No Network Manager doesn't mean that you can't connect to the internet. You just have to do it the good old way:

First bring your network interface up (assumed that eth0 is your network interface):

ifconfig eth0 up

Assumed that your network is configured via DHCP, you have to receive an ip address:

dhclient -v eth0

Then set a default route (assumed that your router has the ip

route add default gw

From now on you should be connected (if nothing went wrong) you can try by pinging Google via ip address:

ping -c 4

Last but not least, set the dns-servers in /etc/resolv.conf (assumed that your dns-server is


Now you should be able to ping Google by name:

ping -c 4 www.google.com

If this works, you can reinstall NetworkManager via apt or Software Center.

apt-get install --reinstall network-manager

But, don't just copy & paste my commands, they are most likely not the same as yours. If something went wrong, please post the output of the commands.

Edit: If it's a wireless network interface (it's a bit tricky):

Just go sure it's up

ifconfig wlan0 down
ifconfig wlan0 up

You should see your wireless network interface with the command


If it is recognized as a wireless interface, you can scan the network with (assumed that your wireless interface is wlan0):

iwlist wlan0 scan

Then establish a connection to the essid:

iwconfig wlan0 essid "youressid"

Set the connection password:

iwconfig wlan0 key s:yourpassword 

Hope you get an ip:

dhclient -v wlan0 

Set the default route and the name servers as above.

  • The command "ifconfig" doesnot list the details of wifi interface card. – Zuhran Oct 23 '13 at 12:42
  • Uh, with a wireless interface it's a bit more complicated, see my updated answer. – chaos Oct 23 '13 at 13:13
  • While setting key for wireless network, the output is: Error for wireless request "Set Encode" (8B2A) : SET failed on device wlano; Invalid argument – Zuhran Oct 23 '13 at 13:25
  • Your wrote wlano. That's wrong, type iwconfig to find out how your wireless interface is called, most likely wlan0 not wlano. – chaos Oct 23 '13 at 13:35
  • Oh, sorry. Exactly, its wlan0 – Zuhran Oct 23 '13 at 13:57

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