Herobox Realtek LAN sometimes missing in Windows 10

A Herobox running Windows 10 Home 22H2 64 Bit now is missing the Realtek LAN device “Realtek PCIe GbE Family Controller”. It needs to be restarted a few times or shutdown and then rebooted after disconnecting the power supply for a few seconds pressing the Power button when disconnected to bring it back. In the Windows device manager the device is listed as disconnected when the option show hidden devices is enabled.

If that is relevant the current driver version from Realtek is: 10.32.1206.2018 dated from 2018-12-06 and this happened around twice per month. Switching to the WIFI adapter was possible as a workaround as well.

Should I also try and provide a currenty BIOS version - it was never updated so far. CPU-Z reports this string: $(AMI_ROM_NAME)_T$(2019)$(10)$(29)$(14)$(22)

Now also the Intel(R) Dual Band Wireless-AC 3165 Card is no longer visible and cannot be used. To get the machine online I am using an Android phone and USB Tethering because all other networking hardware is not working anymore.