Loss of Network after 2 or more hours

[LFengineer]

When the computer is on for more than 2 hours the network connection drops. This is usually with a wired ethernet connection through a Thunderbolt (USB C) dock. When the network connection drops the WiFi will not respond as well, the network connection will not reset through the GUI or command line and sometimes the whole machine locks up. This also effect a Win10 virtual machine which then also drops network connection, although not necessarily at the same time. The computer is a Lenovo Thinkpad Extreme X1 Gen2 with a Lenovo dock. I have this issue on 2 of the same computers and same dock. This started after a system update on 10/18, so I am thinking of restoring a Timeshift from before that update. Before I do that I would like to solve this without doing the Timeshift restore. I have also ruled out external hardware issues (dock, ethernet cables, usb C cable, and router settings). I have also updated the firmware on this machine with fwupd. A reboot typically solves this issue for a number of hours but then it does reappear.

Also, when this issue occurs, a normal reboot/shutdown does not work and the power button must be pressed for a complete shutdown. Pressing escape during this shows the system reaches power off state but there is a 'hang' with r8152 which is the USB network driver. A search for issues with this driver resulted in a mixed bag.

System specs:

Code: Select all

System:    Kernel: 5.4.0-81-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.6.7 wm: muffin 4.6.3 
           dm: LightDM 1.30.0 Distro: Linux Mint 20 Ulyana base: Ubuntu 20.04 focal 
Machine:   Type: Laptop System: LENOVO product: 20QV000DUS v: ThinkPad X1 Extreme 2nd serial: <filter> Chassis: type: 10 
           serial: <filter> 
           Mobo: LENOVO model: 20QV000DUS v: SDK0J40697 WIN serial: <filter> UEFI: LENOVO v: N2OET41W (1.28 ) date: 11/25/2019 
Battery:   ID-1: BAT0 charge: 72.6 Wh condition: 73.2/80.4 Wh (91%) volts: 17.1/15.4 model: SMP 5B10W13900 type: Li-poly 
           serial: <filter> status: Unknown cycles: 24 
CPU:       Topology: 6-Core model: Intel Core i7-9750H bits: 64 type: MT MCP arch: Kaby Lake rev: A L2 cache: 12.0 MiB 
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 62399 
           Speed: 800 MHz min/max: 800/4500 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800 5: 800 6: 800 7: 800 8: 800 
           9: 800 10: 800 11: 800 12: 800 
Graphics:  Device-1: Intel UHD Graphics 630 vendor: Lenovo driver: i915 v: kernel bus ID: 00:02.0 chip ID: 8086:3e9b 
           Device-2: NVIDIA TU117M [GeForce GTX 1650 Mobile / Max-Q] vendor: Lenovo driver: nvidia v: 460.91.03 
           bus ID: 01:00.0 chip ID: 10de:1f91 
           Display: x11 server: X.Org 1.20.11 driver: modesetting,nvidia unloaded: fbdev,nouveau,vesa 
           resolution: 1920x1080~60Hz, 1920x1080~60Hz, 1920x1080~60Hz 
           OpenGL: renderer: GeForce GTX 1650 with Max-Q Design/PCIe/SSE2 v: 4.6.0 NVIDIA 460.91.03 direct render: Yes 
Audio:     Device-1: Intel Cannon Lake PCH cAVS vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 00:1f.3 
           chip ID: 8086:a348 
           Device-2: NVIDIA vendor: Lenovo driver: snd_hda_intel v: kernel bus ID: 01:00.1 chip ID: 10de:10fa 
           Device-3: Lenovo USB2.0 Hub type: USB driver: hid-generic,snd-usb-audio,usbhid bus ID: 5-2.1.1.2:7 
           chip ID: 17ef:3083 serial: <filter> 
           Sound Server: ALSA v: k5.4.0-81-generic 
Network:   Device-1: Intel Ethernet I219-V vendor: Lenovo driver: e1000e v: 3.2.6-k port: efa0 bus ID: 00:1f.6 
           chip ID: 8086:15bc 
           IF: enp0s31f6 state: down mac: <filter> 
           Device-2: Intel Wi-Fi 6 AX200 driver: iwlwifi v: kernel port: 3000 bus ID: 52:00.0 chip ID: 8086:2723 
           IF: wlp82s0 state: down mac: <filter> 
           Device-3: Lenovo type: USB driver: r8152 bus ID: 6-1.1.2:4 chip ID: 17ef:3082 serial: <filter> 
           IF: enx3ce1a1c337ef state: up speed: 1000 Mbps duplex: full mac: <filter> 
           IF-ID-1: vmnet1 state: unknown speed: N/A duplex: N/A mac: <filter> 
           IF-ID-2: vmnet8 state: unknown speed: N/A duplex: N/A mac: <filter> 
Drives:    Local Storage: total: 931.51 GiB used: 256.45 GiB (27.5%) 
           ID-1: /dev/nvme0n1 vendor: Crucial model: CT1000P1SSD8 size: 931.51 GiB speed: 31.6 Gb/s lanes: 4 serial: <filter> 
           rev: P3CR013 scheme: GPT 
Partition: ID-1: / size: 915.40 GiB used: 256.44 GiB (28.0%) fs: ext4 dev: /dev/nvme0n1p2 
Sensors:   System Temperatures: cpu: 61.0 C mobo: 49.0 C gpu: nvidia temp: 50 C 
           Fan Speeds (RPM): cpu: 2183 
Repos:     No active apt repos in: /etc/apt/sources.list 
           Active apt repos in: /etc/apt/sources.list.d/additional-repositories.list 
           1: deb https://qgis.org/debian-ltr ulyana main
           Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list 
           1: deb [arch=amd64] https://brave-browser-apt-release.s3.brave.com/ stable main
           Active apt repos in: /etc/apt/sources.list.d/google-earth-pro.list 
           1: deb [arch=amd64] http://dl.google.com/linux/earth/deb/ stable main
           Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
           1: deb http://packages.linuxmint.com ulyana main upstream import backport #id:linuxmint_main
           2: deb http://archive.ubuntu.com/ubuntu focal main restricted universe multiverse
           3: deb http://archive.ubuntu.com/ubuntu focal-updates main restricted universe multiverse
           4: deb http://archive.ubuntu.com/ubuntu focal-backports main restricted universe multiverse
           5: deb http://security.ubuntu.com/ubuntu/ focal-security main restricted universe multiverse
           6: deb http://archive.canonical.com/ubuntu/ focal partner
Info:      Processes: 354 Uptime: 4m Memory: 31.01 GiB used: 1.56 GiB (5.0%) Init: systemd v: 245 runlevel: 5 Compilers: 
           gcc: 9.3.0 alt: 9 Shell: bash v: 5.0.17 running in: gnome-terminal inxi: 3.0.38 

Thanks in advance

[sleeper12]

Try updating your kernel to 5.4.0-89. If the -89 is no help, you could try the 5.11 on that newer machine.

[LFengineer]

I updated the kernel to 5.4-89 and the issue still persists. I then updated to kernel 5.11 and still have this issue.

Any other suggestions?

[sleeper12]

I updated the kernel to 5.4-89 and the issue still persists. I then updated to kernel 5.11 and still have this issue.

Any other suggestions?

I'm afraid not. Timeshift may be your answer unless someone else responds.