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How do I re-install Network Manager without an internet connection?

My friend has deleted network Manager. However, now she want connect Internet over using wireless. How can I manage that wish without Network Manager ?

EDIT: It was deleted by using ubuntu software center.

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marked as duplicate by Jorge Castro, Stefano Palazzo Aug 5 '11 at 9:21

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
When you mean deleted? Do you mean the package or just the applet? You can easily add the nm-applet back even if it is deleted from the panel. Read these. help.ubuntu.com/community/Applets –  JohanSJA Aug 4 '11 at 9:28
    
It was deleted from software center. –  user20296 Aug 4 '11 at 9:29
    
possible dup of askubuntu.com/questions/55805/… –  user606723 Aug 4 '11 at 15:38
    
@fatai If this is a different problem than the one you described in How do I re-install Network Manager without an internet connection?, let me know and I'll re-open it. Looks like they're different questions trying to solve the same problem. –  Stefano Palazzo Aug 5 '11 at 9:05

1 Answer 1

The easy solution to your problem would be to install back NetworkManager.

But how do you install it back if you do not have Internet access?

It is possible to manually connect to the Internet using an Ethernet cable (technically it is far easier than a wireless connection).

Therefore,

  1. connect the computer with an Ethernet cable to the router,
  2. open a terminal window ('gnome-terminal') and run dhclient eth0 (you should get Internet access now)
  3. and finally start the Software Center and install network-manager-gnome.
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No ethernet, do you have any Solution ? –  user20296 Aug 4 '11 at 10:28
    
You can perform a network connection using Wifi and WEP. Can you configure your wireless router to use WEP? (you can then change it back to WPA2). See my other answer below about getting online manually with WEP. –  user4124 Aug 4 '11 at 10:36