CM4 after reboot NIC (eth0) disappears / no ethernet connection
Author: JN19abanCreated Jun 11, 2023Updated Sep 16, 2026
Describe the bug
Hi,
I have a CM4 with EMMC and without wireless with official CM4 board and sometimes after reboot the NIC connection disappears. To get it work again either re-plug the power or doing sudo reboot.
Also I am noticing that before starting this problem when I reboot the ethernet connection leds does not power off and then power on. The same does the power led. It feels like completely ignore the the network drivers.
Steps to reproduce the behaviour
Just reboot some times.
Device (s)
Raspberry Pi CM4
System
25e2319effa91eb95edd9d9209eb9f8a584d67be
version d7f9c2b4ef7e4a8c0b04374a879ce89d7a948453 (clean) (release) (start)
6.1.31-v8+
Logs
No response
Additional context
Source: raspberrypi/linux