intel x553 (c3000 chipset) loading x520 driver
We have an supermicro (SYS-5019A-FTN4) based on the c3000 serie cpu (atom C3758) with 2.4.5-RELEASE pfsense on the system).
I use 2 of the onboard ports (intel x553 on chipset) for WAN and LAN. after installing a intel x520 10gb network card, all the ports stopped working.
I have found the same issue on reddit: https://www.reddit.com/r/PFSENSE/comments/az710b/intel_520_driver_loading_for_intel_553/ (setting fixed interface speed under: setting interface -> Speed and Duplex to 1000baseT as mentioned on this thread didn't fix the issue for me).
I tried to setup the interfaces again, but automatic detection of the interface failed (always down).
it seems a bug in the driver. after removing the x520 card the system is back to normal.