Raspberry pi 5 sometimes won't connect to LAN.

[radekjuthner]

I started RPI5, pressed SHIFT. RPI loaded Network installer and then lost network connection. Could not use Network installer. Replugging the network cable solved the problem.
Losing LAN connection happens very randomly - about once in 7 to 10 boots.
If I continue to boot linux in a bad state, then it is not possible to ping the router from the RPI, but it is possible to ping the RPI from the router.
I originally suspected the Linux driver (#6420), but the error occurs before it even boots.

Device (s)
Raspberry Pi 5

System
cat /etc/rpi-issue
Raspberry Pi reference 2024-03-15
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, f19ee211ddafcae300827f953d143de92a5c6624, stage2

vcgencmd version
2024/10/10 00:36:47
Copyright (c) 2012 Broadcom
version 0e63dd5e (release) (embedded)

uname -a
Linux raspi5 6.6.44-v8+ raspberrypi/linux#1789 SMP PREEMPT Mon Aug 5 15:22:52 BST 2024 aarch64 GNU/Linux