Quite likely that you use out-of-tree r8168 instead of r8169: Kernel modules: r8168
Please remove r8168 and see if the issue persists. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1778511 Title: PCI network card (r8169) UNCLAIMED at boot Status in linux package in Ubuntu: Confirmed Bug description: 2 network interfaces installed - Intel and Realtek. Intel (onboard) no problem. Realtek (PCI Express) not loaded at boot. lshw -C network (after boot) shows *-network UNCLAIMED description: Ethernet controller product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:05:00.0 version: 06 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd cap_list configuration: latency=0 resources: ioport:d000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff sudo modprobe -r r8169 & sudo modprobe r8169 loads driver lshw -C network then gives *-network description: Ethernet interface product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:05:00.0 logical name: enp5s0 version: 06 serial: 98:de:d0:06:2e:68 size: 1Gbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl_nic/rtl8168e-2.fw ip=192.168.2.6 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s resources: irq:32 ioport:d000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff INTEL *-network description: Ethernet interface product: Ethernet Connection I217-V vendor: Intel Corporation physical id: 19 bus info: pci@0000:00:19.0 logical name: eno1 version: 04 serial: 74:d0:2b:9e:f5:fb size: 1Gbit/s capacity: 1Gbit/s width: 32 bits clock: 33MHz capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=3.2.6-k duplex=full firmware=0.13-4 ip=192.168.1.64 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s resources: irq:27 memory:f7f00000-f7f1ffff memory:f7f3d000-f7f3dfff ioport:f080(size=32) ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-image-4.15.0-23-generic 4.15.0-23.25 ProcVersionSignature: Ubuntu 4.15.0-23.25-generic 4.15.18 Uname: Linux 4.15.0-23-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: richard 4495 F.... pulseaudio /dev/snd/controlC1: richard 4495 F.... pulseaudio CurrentDesktop: ubuntu:GNOME Date: Mon Jun 25 13:15:42 2018 HibernationDevice: RESUME=UUID=03521e66-171a-4e66-bc2e-650c385fbefc InstallationDate: Installed on 2013-10-18 (1710 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MachineType: ASUS All Series ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-23-generic root=UUID=496abb27-03bd-48e8-81b3-bdb5f4aea244 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.15.0-23-generic N/A linux-backports-modules-4.15.0-23-generic N/A linux-firmware 1.173.1 SourcePackage: linux UpgradeStatus: Upgraded to bionic on 2018-05-15 (41 days ago) dmi.bios.date: 05/17/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1007 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z87-PRO dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1007:bd05/17/2013:svnASUS:pnAllSeries:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ87-PRO:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.family: ASUS MB dmi.product.name: All Series dmi.product.version: System Version dmi.sys.vendor: ASUS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778511/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp