Ubuntu: Unable to connect to internet in Ubuntu 15.04



Question:

I upgraded Ubuntu 14.10 to 15.04 but after upgrading I am not able to connect to internet. I want to tell you that I am trying to connect to internet through DSL cable. The error message it is displaying is

Connection activation failed  (1) Creating object for path '/org/freedesktop/NetworkManager/ActivationConnection/4' failed in libnm-glib.  


Solution:1

Try this

sudo apt-get install -d --reinstall network-manager network-manager-gnome  sudo apt-get purge network-manager-gnome network-manager  sudo apt-get install network-manager-gnome  

Source: http://ubuntuforums.org/showthread.php?t=2239214


Solution:2

I tried rebooting, deleting and re-creating the connections, I tried purging and reinstalling the network manager, nothing worked for me...

Until! Another user suggested (re)installing pppoe:

sudo apt-get install pppoe  

Worked like a charm :-)


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