Confirmed on current lucid as well. If the router advertisement fails for some reason, configuration of the network just fails even if an ipv4 via dhcp is assigned:
Apr 19 14:59:37 faui44a NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Get) complete. Apr 19 14:59:37 faui44a dhclient: bound to 131.188.34.129 -- renewal in 1747 seconds. Apr 19 14:59:48 faui44a NetworkManager: <info> Device 'eth0' IP6 addrconf timed out or failed. Apr 19 14:59:48 faui44a NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP6 Configure Timeout) scheduled... Apr 19 14:59:48 faui44a NetworkManager: <info> Activation (eth0) Stage 4 of 5 (IP6 Configure Timeout) started... Apr 19 14:59:48 faui44a NetworkManager: <info> (eth0): device state change: 7 -> 9 (reason 5) Apr 19 14:59:48 faui44a NetworkManager: <info> Marking connection 'auto' invalid. ** Changed in: network-manager (Ubuntu) Importance: Low => Medium ** Changed in: network-manager (Ubuntu) Status: Incomplete => Confirmed -- IPv6=automatic breaks IPv4 https://bugs.launchpad.net/bugs/284874 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