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I have a little problem in my Trusty. To beginn with, my mobile broadband works 100% but there is another connection that appears to be simultaneous.

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When I click the new connection the following message appears: following

Connection activation failed
(1) Creating object for path '/org/freedesktop/NetworkManager/ActiveConnection/1' failed in libnm-glib.

If I then click on connection name option of my key the following message appears:

Connection activation failed
(32) The connection was not supported by oFono.

When I want to create a new connection the Create a connection for Mobile BroadBand option contains two choices empty any device

2 Answers 2

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None of the above solutions worked for me in Ubuntu 14.04

The thing that worked:

  1. Remove your broadband connection (right clicking Network applet > Edit Connections)
  2. Reboot
  3. Add connection again

This worked for me.

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  • This worked for me as well. :)
    – Jinesh
    Sep 16, 2014 at 5:34
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Instead of restarting the machine. Restarting network-manager, which is actually causing the problem, solves the problem. Restart of network-manager forces all connections to be re-established.

Enter this command in a terminal:

sudo service network-manager restart

After you are prompted for and enter your password, this will restart the network manager.

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  • I recommend expanding this answer (through editing) to explain why you expect restarting NetworkManager might fix the problem. Aug 23, 2014 at 5:33

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