There is a fix for this: https://ubuntuforums.org/showthread.php?t=2305819
add a file to the /etc/modules-load.d directory to have the modules loaded into the kernel at boot. I just created a file called netfilter.conf and put the following in it: nf_nat_pptp nf_conntrack_pptp nf_conntrack_proto_gre Is it safe to use this solution? I don't know what those three entries mean. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1568560 Title: nm_device_get_device_type: assertion 'NM_IS_DEVICE (self)' failed To manage notifications about this bug go to: https://bugs.launchpad.net/network-manager/+bug/1568560/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
