On the affected machine, could you please try to ping www.ubuntu.com and archive.ubuntu.com? I can reproduce the lack of ping response from www.abc.net.au, but this may be related to the www.abc.ne.au network connection, rather than either my or your local connection.
** Changed in: Ubuntu Status: Unconfirmed => Needs Info -- Some default installations can only connect to google. https://bugs.launchpad.net/bugs/114369 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs