Score:0

Ubuntu

Ubuntu 22.04.3 LTS - Wired network connection randomly breaking until reboot

QTom

8/17/24, 3:37 PM

I have a mini PC I use as a home server running Ubuntu 22.04.3 LTS. I've had it for several months now with no issues but as of a week or so ago it has started randomly losing connection to my network. It is on a wired connection but it just loses connection and acts like it is not plugged in.

I've tried:

Turning wired connection on/off in the settings
Removing and reinserting the network cable in the server and the router

Nothing seems to fix it except rebooting.

Potentially relevant details:

I install updates and reboot each night so it could be caused by a recent update
It's connected via a network switch (however the other devices on the switch work fine)
It uses a static local ip
Kernel version: 6.2.0-26-generic (this may have updated recently as I think I was on 5.something last time I checked)
Wifi is usually switched off but it seems to work fine if I turn it on

Appreciate any info or suggestions of what logs to look at to find out whats happening, thanks.

Edit: I've checked my upgrade logs and this issue first happened on Monday which seems to be when the kernel was updated, so potentially the kernel upgrade caused some problems. Before that I was on 5.19.0-50-generic so I may try downgrading if this continues and I can't find any other fix

193

2 + 2

server

networking

internet

ethernet

22.04

mpboden

8/17/24, 3:44 PM

Did you try a different cable? A different port on switch? A different switch?

QTom

8/17/24, 3:53 PM

@mpboden I dont have any other switches or cables, plus the fact that rebooting without touching anything fixes the issue makes me pretty confident its a software issue

Score:0

Ubuntu

SRSLOL

8/17/24, 10:51 PM

I started having the same issues this week. I did a full update today and I haven't had the issue since. Knock on wood.

+ 4

QTom

8/18/24, 8:13 AM

Good to know it's not just me. I'm a bit of a linux rookie, when you say "full update" what exactly did you do?

SRSLOL

8/19/24, 9:36 PM

Hey buddy. Did a sudo apt update / install -y. Still working. It was super frustrating because my wifi would work but not wired. I had to restart in the middle of work.

QTom

8/20/24, 4:03 PM

Unfortunately I can't say the same, I made sure I updated everything possible today and then it happened again within like an hour, will probably try downgrading my kernel later.

SRSLOL

8/24/24, 3:51 PM

One idea that just rattled around my head. What if you find the driver for the network card, delete it, reinstall it?

Score:0

Ubuntu

LiquidWifi

8/18/24, 6:41 PM

I'm having the same issues as you, which started about a week ago. I tried to do a system update yesterday, but lost connection a few hour later. I did a downgrade on my kernel this morning (5.19.0-50-generic) and for now, I haven't had the issue since

+ 1

LiquidWifi

8/21/24, 9:17 PM

Downgrading my Kernel worked! Still no crash for now

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Ubuntu 22.04.3 LTS - Wired network connection randomly breaking until reboot

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