I have the same problem. Ther was not a problem with Linux Mint 19 Tara (Ubuntu 18.04) and kernel 4.13. Most posts here seem to be associated with Realtek eternet controllers, mine is an Intel I218-LM.
Since kernel 4.15 updates (now automatic on Linux Mint 19) problem occurs. With latest 4.15.0.29-generic, it occurs on every wakeup and on wake from sleep. Tail of demsg output after wakeup from suspend, and network does not start: [ 6728.148319] IPv6: ADDRCONF(NETDEV_UP): enp0s25: link is not ready [ 6728.186196] Bluetooth: hci0: Intel firmware patch completed and activated [ 6728.358921] IPv6: ADDRCONF(NETDEV_UP): enp0s25: link is not ready [ 6728.359892] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready [ 6731.311560] e1000e: enp0s25 NIC Link is Up 10 Mbps Full Duplex, Flow Control: Rx/Tx [ 6731.311564] e1000e 0000:00:19.0 enp0s25: 10/100 speed: disabling TSO [ 6731.311594] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s25: link becomes ready [ 6784.144561] e1000e: enp0s25 NIC Link is Down At this point, I unplug the ethernet cable from the laptop, wait 2 seconds, and re-plug, and this line immediately follows: [ 6795.074983] e1000e: enp0s25 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx $ inxi -S -n -N System: Host: Manjusri Kernel: 4.15.0-29-generic x86_64 bits: 64 Desktop: Xfce 4.12.3 Distro: Linux Mint 19 Tara Network: Card-1: Intel Ethernet Connection I218-LM driver: e1000e IF: enp0s25 state: up speed: 1000 Mbps duplex: full mac: 68:f7:28:52:e4:08 Card-2: Intel Wireless 7260 driver: iwlwifi IF: wlp3s0 state: down mac: 7c:7a:91:31:dc:bf -- 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/1752772 Title: r8169 ethernet card don't work after returning from suspension Status in linux package in Ubuntu: Fix Released Status in linux source package in Bionic: Fix Released Bug description: ===SRU Justification=== [Impact] Ethernet r8169 stops working after system resumed from suspend. [Test] User confirmed these patches fix the issue. r8169 continues to work after resume from suspend. [Regression Potential] Medium. The fix is limited to one device, all patches are in mainline. The WOL default change might cause regression for users that depend on BIOS settings. We can advice them to use userspace tool (systemd, ethtool, etc.) instead. ===Original Bug Report=== I have noticed that the network stopped working on my desktop after I've suspended the system and woke it up. On dmesg there are messages like: [ 150.877998] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready [ 150.944101] do_IRQ: 3.37 No irq handler for vector [ 150.944105] r8169 0000:01:00.0 enp1s0: link down [ 150.944180] IPv6: ADDRCONF(NETDEV_UP): enp1s0: link is not ready When using Xenial (from a different install), this problem is not happening. This is happening on Bionic. There are only two ways to restore connectivity: 1) Reboot the system; 2) Remove the r8169 module and reinsert it with modprobe. The motherboard is a AsRock H55M-LE and the Ethernet controller is: 01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 03) ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: linux-firmware 1.172 ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 Uname: Linux 4.15.0-10-generic x86_64 ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 CurrentDesktop: LXDE Date: Fri Mar 2 00:21:57 2018 Dependencies: InstallationDate: Installed on 2018-02-26 (3 days ago) InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180226) PackageArchitecture: all SourcePackage: linux-firmware UpgradeStatus: No upgrade log present (probably fresh install) --- AlsaVersion: Advanced Linux Sound Architecture Driver Version k4.15.0-10-generic. ApportVersion: 2.20.8-0ubuntu10 Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: MID [HDA Intel MID], device 0: VT1818S Analog [VT1818S Analog] Subdevices: 1/1 Subdevice #0: subdevice #0 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: usuario 1153 F.... pulseaudio /dev/snd/controlC1: usuario 1153 F.... pulseaudio Card0.Amixer.info: Card hw:0 'MID'/'HDA Intel MID at 0xfbdf8000 irq 26' Mixer name : 'VIA VT1818S' Components : 'HDA:11060440,18492818,00100000' Controls : 40 Simple ctrls : 17 Card1.Amixer.info: Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfbffc000 irq 27' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 7 Simple ctrls : 1 Card1.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined Playback channels: Mono Mono: Playback [on] CurrentDesktop: LXDE Dependencies: DistroRelease: Ubuntu 18.04 HibernationDevice: RESUME=UUID=edd83175-c707-4b31-90d2-ce2f5cebc73f InstallationDate: Installed on 2018-02-26 (3 days ago) InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180226) MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M. Package: linux-firmware 1.172 PackageArchitecture: all ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz root=UUID=0c4fc517-b7a0-49b0-bfcb-0485dfe6413b ro quiet ProcVersionSignature: Ubuntu 4.15.0-10.11-generic 4.15.3 RelatedPackageVersions: linux-restricted-modules-4.15.0-10-generic N/A linux-backports-modules-4.15.0-10-generic N/A linux-firmware 1.172 RfKill: Tags: bionic Uname: Linux 4.15.0-10-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip libvirt lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 10/20/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: P1.80 dmi.board.name: H55M-LE dmi.board.vendor: ASRock dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.80:bd10/20/2010:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnH55M-LE:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To Be Filled By O.E.M. dmi.product.name: To Be Filled By O.E.M. dmi.product.version: To Be Filled By O.E.M. dmi.sys.vendor: To Be Filled By O.E.M. 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