Hello I found an internal document that is likely related to your issue. If a switch is installed on the A fabric that does not support all 4 ports of the LOM then it will cause firmware mismatch issues if the firmware on the LOM is updated. When a FW update is performed on the LOM it will only update the chip that controls two of the ports, the second chip that controls the other two ports will not be updated. This will affect the ability of flexaddress to work properly. These are the steps to resolve the issue: Thanks
Hello,   I've been fighting in bringing up an older offline chassis and have ran into a problem of the 1GbE interfaces not using the flex addresses even though inside the CMC they show to be assigned and in use. m1000e cmc 6.10 hw A06 A1/A2 M6220 modules (flex addresses not working) B1/B2 10GBEKR MXL 10/40GbE (flex addresses are working)   M520 Blade idrac 2.60.60.60 broadcom gigabit 20.8.4 bios 2.7.0 perc h310 20.13.3-0001 lifecycle 2.60.60.60 cpld 1.0.6   I've tried everything that seemed to have worked for everyone else; power off blades, disable flex address, virtual and physical reset, enable flex, virtual and physical reseat   Even tried power off chassis instead of the reseats. Disabled flex, turned off sdcards for flex and storage, powered off chassis, removed sdcards.   Nothing seems to work.  the blade idrac will always show the physical mac assigned over the chassis.   The only time I got the blade idrac to show the chassis assigned is when I disabled nic1 and 2 in the bios and did a reseat.  Obviously not much good since I need the nics...   Any other ideas out there as to what to try?   Thanks.
M520 blade and M1000e not using flexaddresses for 1GbE only