ethernet keeps reconnecting since update of 13th of november

Hi,
since the last update my wired network connection keeps reconnection 20 times and more until it eventually comes to hold the connection. Sometimes it helps to delete the hole connection in NM and add a new one.

Has anybody an idea what's happening?

dmesg:

3.394395] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 3.394396] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 3.394595] e1000e 0000:00:1f.6: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode
[ 3.608208] e1000e 0000:00:1f.6 0000:00:1f.6 (uninitialized): registered PHC clock
[ 3.679614] e1000e 0000:00:1f.6 eth0: (PCI Express:2.5GT/s:Width x1) 18:66:da:31:e4:4a
[ 3.679640] e1000e 0000:00:1f.6 eth0: Intel(R) PRO/1000 Network Connection
[ 3.679733] e1000e 0000:00:1f.6 eth0: MAC: 12, PHY: 12, PBA No: FFFFFF-0FF
[ 3.764714] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0
[ 11.502838] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 34.762974] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 40.949721] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 47.126474] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 53.323099] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 59.509822] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 65.699822] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 71.886556] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 78.069925] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 84.256584] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 90.446606] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 96.633312] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 102.816703] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 109.003406] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 115.190067] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 121.373419] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 127.566817] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 133.753487] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 139.936881] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 146.123545] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 152.313601] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 158.493786] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 164.686968] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 170.860380] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 177.057031] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 183.227072] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 189.430442] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 195.607117] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 201.803895] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 207.990584] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 214.177267] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 220.367229] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 226.563922] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 232.730625] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 238.910711] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 245.110780] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 251.297386] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 257.480747] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 263.667439] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 269.857504] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 276.024265] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 339.820952] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 346.017890] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 352.197892] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 358.391309] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 364.564615] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx
[ 419.831816] e1000e: enp0s31f6 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx

Systeminfo:

System:    Host: bender Kernel: 5.3.11-1-MANJARO x86_64 bits: 64 compiler: gcc v: 9.2.0 
           Console: tty 2 wm: kwin_x11 dm: SDDM Distro: Manjaro Linux 
Machine:   Type: Desktop System: Dell product: XPS 8900 v: N/A serial: <filter> Chassis: 
           type: 3 serial: <filter> 
           Mobo: Dell model: 0XJ8C4 v: A00 serial: <filter> UEFI: Dell v: 2.6.1 
           date: 05/23/2019 
CPU:       Topology: Quad Core model: Intel Core i7-6700 bits: 64 type: MT MCP 
           arch: Skylake-S rev: 3 L1 cache: 256 KiB L2 cache: 8192 KiB L3 cache: 8192 KiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 54417 
           Speed: 816 MHz min/max: 800/4000 MHz Core speeds (MHz): 1: 900 2: 900 3: 900 
           4: 900 5: 900 6: 900 7: 900 8: 900 
Graphics:  Device-1: NVIDIA GM206 [GeForce GTX 960] driver: nvidia v: 430.64 bus ID: 01:00.0 
           chip ID: 10de:1401 
           Display: server: X.Org 1.20.5 driver: nvidia compositor: kwin_x11 
           resolution: 1920x1080~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: GeForce GTX 960/PCIe/SSE2 v: 4.6.0 NVIDIA 430.64
           direct render: Yes
Audio:     Device-1: Intel 100 Series/C230 Series Family HD Audio vendor: Dell
           driver: snd_hda_intel v: kernel bus ID: 00:1f.3 chip ID: 8086:a170
           Device-2: NVIDIA GM206 High Definition Audio driver: snd_hda_intel v: kernel
           bus ID: 01:00.1 chip ID: 10de:0fba
           Sound Server: ALSA v: k5.3.11-1-MANJARO
Network:   Device-1: Intel Ethernet I219-V vendor: Dell driver: e1000e v: 3.2.6-k port: f000
           bus ID: 00:1f.6 chip ID: 8086:15b8
           IF: enp0s31f6 state: up speed: 1000 Mbps duplex: full mac: <filter>
           IF-ID-1: docker0 state: down mac: <filter>
           IF-ID-2: virbr1 state: down mac: <filter>
           IF-ID-3: virbr1-nic state: down mac: <filter>
Drives:    Local Storage: total: 3.87 TiB used: 889.22 GiB (22.4%)
           ID-1: /dev/sda vendor: Toshiba model: DT01ACA200 size: 1.82 TiB speed: 6.0 Gb/s
           rotation: 7200 rpm serial: <filter> rev: ABX0 scheme: GPT
           ID-2: /dev/sdb vendor: SK Hynix model: SC308 SATA 256GB size: 238.47 GiB
           speed: 6.0 Gb/s serial: <filter> rev: 0P10 scheme: GPT
           ID-3: /dev/sdc type: USB vendor: Western Digital model: WD My Book 1140
           size: 1.82 TiB serial: <filter> rev: 1025 scheme: MBR
           ID-4: /dev/sde type: USB vendor: Generic model: SD MMC size: 6.5 MiB
           serial: <filter> rev: 1.00 scheme: MBR
RAID:      Hardware-1: Intel SATA Controller [RAID mode] driver: ahci v: 3.0 port: f020
           bus ID: 00:17.0 chip ID: 8086.2822 rev: 31
Partition: ID-1: / size: 108.88 GiB used: 95.71 GiB (87.9%) fs: ext4 dev: /dev/sdb5
Sensors:   System Temperatures: cpu: 33.5 C mobo: 29.8 C gpu: nvidia temp: 31 C
           Fan Speeds (RPM): N/A gpu: nvidia fan: 30%
Info:      Processes: 269 Uptime: 15m Memory: 15.58 GiB used: 3.15 GiB (20.2%) Init: systemd
           v: 242 Compilers: gcc: 9.2.0 alt: 6 clang: 9.0.0 Shell: bash (sudo) v: 5.0.11
           running in: konsole inxi: 3.0.36

This has been discussed countless times already, but I'm going to emphasize this again.
The 5.3 kernel has been causing all kinds of issues lately, especially when it comes to networking.
I see nothing in your system specs above, that would benefit from, or require the use of, the 5.3 kernel.
Please, downgrade to one of our provided LTS (long term support) kernels, preferable 4.19, which is the Manjaro default on our official ISO's.

1 Like

As @AJSlye already mentioned a kernel change is your best bet.

Other avenues you could try are:

Install the kernel headers for your kernel version, then install the e1000e driver from the AUR.

You could also test older linux-firmware packages as recent Intel firmware has been very buggy.

It is possibly caused by an unclean connection termination which leaves it in an undefined state. If left unresolved prior to shutdown it could affect subsequent boots.

Probably try:
systemctl stop NetworkManager NetworkManager-dispatcher NetworkManager-wait-online
systemctl start NetworkManager NetworkManager-dispatcher NetworkManager-wait-online

1 Like

You could also try setting a static IP Address for your computer through your router. Usually this is called Mac address association in your routers settings.

Thanks for the hint, seems as if the kernel discussions were not tagged with network issues.

Unfortunately, switching back to 4.19 does not boot at all any more. I think I'll wait for the next kernel update and keep redefining the connection until then.

Thank you for this. I came here because I've been encountering lots and lots of weird Ethernet problems with a I219-V adapter and a 5.3 kernel.

Downgraded to 4.19 LTS and all is good.

BTW, it seems that 5.3 kernel's are the default if you download via:

https://manjaro.org/download/official/xfce/

I think that might be a mistake. Do you concur and know who this should be reported to?

I agree in that we should probably be shipping our ISO's with an LTS kernel for stability sake. Mainline kernel are short lived, and have a greater tendency to be buggy, and/or have regressions.

For XFCE and Architect that would be Bernhard (oberon)
For Plasma you would talk to Philip (philm)
For Gnome it would be Stefano (ste74)

Hope that was helpful.

Actually it seems as if it was caused by dockerd being started a boottime .

I disabled it and start only when required. Since then no reconnections occured.

Looks like some kind of race condition with network-manager after login.

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