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Since 2 days ago I can't edit any connections using network manager, because the "edit" button is greyed out. I tried doing a normal restart of the service to no avail.

Any suggestions?

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One quick work-around is to invoke the connection editor manually from the command line:


You'll get the same familiar edit screen. Worked for me.

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Running nm-connection-editor did it for me. Was all greyed out and empty otherwise. – Thomas Ferris Nicolaisen Jul 10 '15 at 23:54

Try this fix-for-error-network-device-not i think you got the similar problem as me.

Summary from linked content:

  1. Run in terminal sudo /etc/init.d/networking restart

  2. Edit file /etc/NetworkManager/NetworkManager.conf

  3. Change managed=false to managed=true

  4. Run:

    sudo killall NetworkManager
  5. Now attempt to configure your interface.

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u might need to unlock it, there might be an unlock button somweher in that window, if u cant find it try maximising the window and look for it, happened to me once :)

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I checked and I don't see there is any unlock button as it is in other configuration options not related to network-manager. I Have done an upgrade and still can edit. – Oscar Martinez Nov 16 '11 at 9:06

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