Do you also have messages like "ndisc_router_discovery() failed to add default route" in /var/log/syslog or /var/log/dmesg?
Please run the command 'apport-collect 977725' to add additional debugging information to this bug report. Thanks in advance! ** Changed in: network-manager (Ubuntu) Status: New => Incomplete ** Changed in: network-manager (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/977725 Title: duplicate entries in Kernel IPv6 routing table To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/977725/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs