Network lost after long sleep

[moreje]

Hello,
After a long time in sleep mode, my Desktop running Ubuntu 20.04 loses its network ethernet link.
the demsg shows the following lines after sleep exit:

[10402.613687] PM: suspend exit
[10403.035311] ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[10403.121362] ata1.00: configured for UDMA/133
[10403.363882] e1000e: enp0s25 NIC Link is Down
[10406.484276] e1000e: enp0s25 NIC Link is Up 10 Mbps Full Duplex, Flow Control: Rx/Tx
[10406.484281] e1000e 0000:00:19.0 enp0s25: 10/100 speed: disabling TSO
[10406.484322] IPv6: ADDRCONF(NETDEV_CHANGE): enp0s25: link becomes ready

the ethernet is up but at 10 M / full duplex
DHCP of my router does not give any address.

the only way to retrieve a Full 1000 M functionnal link is to reboot the machine.

Can't determine how much time of sleep it needs to reproduce, since an immediate sleep/wake-up does not produce network loss.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1872408

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[moreje (j-redoute)]

I can't run the apport-collect command since when the bug is active, I have no network link.

[You-Sheng Yang (vicamo)]

@moreje, I would suggest you to buy a usb-ethernet dongle as an emergency work-around for such cases.

[Alex Hung (alexhung)]

@moreje,

Did you try re-initialize the NIC driver with following commands?

sudo modprobe -r e1000e && sudo modprobe e1000e

[moreje (j-redoute)]

Thank you for the tip! I try and come back to reort later!

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]