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I upgraded Kubuntu to 13.04 today. I'm using an ethernet connection. On every boot, networking service is running and everything is configured properly, but it can't establish a connection. I have to

sudo service networking restart

on every startup. How can I fix this? I could create a script to restart networking that runs at startup, but I'd rather find a solution than a workaround.

Can you help me?

P.S.: I found out that sometimes it boots up normally, but there's no log I found that includes different information when networking is "frozen". When it is, though, my CPU reaches over 90% for hp-systray (hp-update) is trying to look for updates but can't understand that network is unreachable.

share|improve this question
I have the same problem. Similar to this question. – Glenn May 15 '13 at 1:34
Could you include the /var/log/daemon.log, /etc/NetworkManager/NetworkManager.conf and /etc/network/interfaces? – Braiam Aug 16 '13 at 14:13
I'm sorry Braiam. I've already installed Kubuntu from scratch and everything works perfectly, now. I absolutely needed a working connection, so I went for the easy way. – Montblanc Aug 19 '13 at 9:52

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