March 2, 20251 yr Currently on 6.12.15. 10Gb SFP+ PCI card interface is the active and preferred interface. Onboard 1Gb NIC is port down. After each .x point upgrade in 6.12.x, the onboard 1Gb NIC is reenabled during the point upgrade. Is this by design or a bug?
March 2, 20251 yr Community Expert just disable it in the BIOS/UEFI and you are permanently done with it. The reenabling may happen if the new kernel rearranges found pci device into a different sequence. This can happen all the time and Unraid just notices, that the supposed ETH0 card is now ETH1 or vice versa. To play it safe (and guarantee LAN access after the reboot) it reenables the port. But, as already said, use the BIOS and it wont happen anymore.
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