I have an internet connection that works through a proxy that requires username & password. After online upgrade to 14.04 from 12.04, I am unable to connect to internet, pinging to popular sites doesn't work. However, I am able to ping to local addresses in my office network. I shall post any more info if needed. I am a networking noob and didn't fiddle with anything in my network settings yet.

1 Answer 1


Use the following command in terminal(Ctrl+Alt+T)to fix this issue.

sudo dhclient
  • Please give a more complete answer to the problem.
    – Charo
    Aug 21, 2014 at 8:18

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