After installing 11.04 alpha2, I cannot access to internet.
I use wireless lan. In network connection dialog, it seems to work well.
But I cannot access any webpages from webbrowser. Even if I use direct ip address -So it is not dns problem.
I cannot download newer version from update-manager. It doesn't work either.
What should I check?
Can I rollback the update? I'm so frustrated and regret.