Built a new server, an upgrade from my current.
Have been testing hardware to make sure everything was working using a Unraid trial.
added a 2.5gb network card and in the trial it worked perfectly.
Moved my drives and the licensed USB over and now the 2.5 gb NIC won't connect to the network.
Card is an IOCrest
[8086:15f3] 22:00.0 Ethernet controller: Intel Corporation Ethernet Controller I225-V (rev 03)
Above is from the hardware list.
If I plug into the realtek on the motherboard networking works.
Also the IOCrest is showing in network settings and the description is
saying "Not Configured".
My thought it didn't come up during boot, but that doesn't make any sense to
me because it worked fine on the Unraid trial version. And yes, I have rebooted twice

with the network cable plugged into the 2.5g card. TIA

Please post the diagnostics.
 

Thank you @JorgeB for the reply, but I think I figured it out. Just need to go to Network Rules and swap MAC addresses and reboot

while switching the ethernet cable. At least that is what I have found.

Attached is the file you requested. Just in case.
 

Thanks again.

merlin-diagnostics-20250120-0817.zip

If all is working, I'm going to mark it resolved.