Since updating to bionic, I notice the same symptoms (network not working after suspend).
I'm adding this comment to note that this makes my network come up again, I'll try to add this as a post-suspend script as described above: $ sudo modprobe -r r8169 $ sudo modprobe r8169 (Suggested in https://ubuntuforums.org/showthread.php?t=2386503 ) My journalctl looks a very little bit different, but I guess it's simply because we don't use exactly the same mainboards, so the IRQs differ: Apr 28 11:00:17 flo-desktop NetworkManager[733]: <info> [1524906017.6262] manager: sleep: wake requested (sleeping: yes enabled: yes) Apr 28 11:00:17 flo-desktop NetworkManager[733]: <info> [1524906017.6263] device (eth0): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'managed') Apr 28 11:00:17 flo-desktop kernel: r8169 0000:02:00.0 eth0: link down Apr 28 11:00:17 flo-desktop kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready Apr 28 11:00:17 flo-desktop NetworkManager[733]: <info> [1524906017.6566] manager: NetworkManager state is now DISCONNECTED Apr 28 11:00:20 flo-desktop ModemManager[693]: <info> Couldn't check support for device at '/sys/devices/pci0000:00/0000:00:0a.0/0000:02:00.0': not supported by any plugin Apr 28 11:00:20 flo-desktop kernel: do_IRQ: 3.36 No irq handler for vector -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1760073 Title: No network from suspend resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1760073/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
