Changing the default r8169 driver for the oficial r8168 works for me. https://blog.desdelinux.net/solucionar-problemas-con-realtek-rtl8111 -8168b-en-lmde/
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1728378 Title: NetworkManager: ((src/devices/nm-device.c:1452)): assertion '<dropped>' failed Status in network-manager package in Ubuntu: Confirmed Bug description: This error shows up in boot logs: "NetworkManager: ((src/devices/nm-device.c:1452)): assertion '<dropped>' failed". Ubuntu 17.10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1728378/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp