Intel V219 ethernet sometimes stops working after resume from sleep/ suspend fedora 44

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1

I’m having intermittent problems with my ethernet not connecting or limited connectivity after resuming from sleep. I usually have to reboot to correct the issue. I replaced my ethernet cable from router to my pc

2

I have this problem on a ThinkPad T450s, which uses an I218-LM ethernet device. I fixed this by writing a systemd script that unloads/reloads NetworkManager and the e1000e device driver on suspend/resume.

As root, I created the file /usr/lib/systemd/system-sleep/network with the following contents:

#!/bin/sh
if [ "$1" = "pre" ] ; then
  /bin/systemctl stop NetworkManager.service
  /bin/ip link set enp0s25 down
  /sbin/modprobe -r e1000e
else
  /sbin/modprobe e1000e
  /bin/sleep 1s
  /bin/ip link set enp0s25 up
  /bin/systemctl start NetworkManager.service
fi
exit 0

I used the ip a command to determine the device name for ip link, and the lspci -v command to determine the driver name for the modprobe.

Make the script executable using:

sudo chmod +x /usr/lib/systemd/system-sleep/network
3

I’d have thought that you should put that file into /etc, but I cannot find a man page saying where in to put it odd…

4

This has the details about where to put the sleep scripts and how systemd calls them:

man systemd-sleep
5

I do not is it does identify a location outside of /etc. Where as all the system conf can be overridden in /etc.