I originally installed Unraid to a flash stick and used it for about a year on PC 'A', today I moved the same stick to a new PC 'B'. The onboard NIC of PC 'B' is not getting picked up by Unraid (interface eth0 in Network Settings' has a blank for Interface Description. The interface widget on the dashboard only has options for 'bond0' and 'lo'. I tried booting into Mint via a different flash drive on PC 'B' and the network/ethernet worked fine on that.

So far I've tried renaming network.cfg on the Unraid flash drive to network.cfg.old however that didn't have any effect, it still lacks network access. The NIC that comes with PC 'B' that I'm using is Realtek 2.5Gb (onboard NIC as part of the B760M-AYW WIFI D4 II motherboard) - what can I do to restore internet access on Unraid?

keraina-nas-diagnostics-20251113-2137.zip

No stock Linux driver for the NIC:

Nov 13 21:16:29 Keraina-NAS kernel: r8169 0000:05:00.0: error -ENODEV: unknown chip XID 688, contact r8169 maintainers (see MAINTAINERS file)

It should work with the Realtek driver plugin.

The plugin github only goes up to r8168 - how long does it typically take to add new realtek drivers, specifically r8169 in this case?

r8169 is the stock driver; you need the Realtek plugin for this NIC, which is an RTL8125

I downloaded the rtl8125 plg file however after booting into unraid it gets moved to the Plugin File Install Errors tab in the Plugins GUI - to be clear, I downloaded the one highlighted red - did I do something wrong? I've attached a new diagnostics export if that helps.

keraina-nas-diagnostics-20251115-1902.zip

Install the driver from APPS, you can boot the flash drive in another PC if needed.