I have the netbook edition of 10.04 and this is also broken on my installation. It is a mixed ipv6/ipv4 network.
If you look closely in the error log above, dhcp fails, because NetworkManager adds an unknown parameter "-4". If you run "dhclient3 -4" on the command line, you will get the same error, so it seems that NetworkManager requires the isc version of dhcp, which strangely was available few months ago in the repository (will check later from where exactly). A fix would be to stop NetworkManager from adding -4 to the command line, or use the proper dhcp version. -- Recent update broke dhcp https://bugs.launchpad.net/bugs/643100 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs