[Board-defect] probe of rtl8367rb failed with error -110

Moved my interceptor board into my NAS Case with 4 HDD Bays.

When I booted, the Network would not work (all show "NO-CARRIER", and physical LEDs do not light up, neither on the interceptor board, nor on the network switch).

Found the following in the kernel log:

[   13.529743] rtl8367b rtl8367rb: cannot find mdio node phandle
[   13.529803] rtl8367b rtl8367rb: using GPIO pins 44 (SDA) and 45 (SCK)
[   13.529945] rtl8367b rtl8367rb: ACK timeout
[   13.530094] rtl8367b rtl8367rb: ACK timeout
[   13.530124] rtl8367b rtl8367rb: unable to read chip number register
[   13.530137] rtl8367b rtl8367rb: chip detection failed, err=-110
[   13.530184] rtl8367b: probe of rtl8367rb failed with error -110

This looks like a software error to me, but could it be due to a non-compatible PSU?

I would really like to keep the case, and the PSU is integrated with it.

More Infos:

Linux Debian 11 (from your install)
Linux buddha 5.10.63-v8 #1 SMP PREEMPT Fri Apr 15 23:51:12 UTC 2022 aarch64 GNU/Linux

things I did that should not have an impact though:

sudo systemctl disable greetd.service # disable greeter as it's a headless system anyways...
sudo systemctl disable systemd-resolved # to free port 53 listening

Thanks a lot in advance!

update: see below, board broke after a week of use on 5 HDD's