I've find why the MD allwyas create a news ID and config.
I think it is an issue with this motherboard because the MAC address change on each reboot !!
I suppose the solution is to add an another lan card because there no bios update, for the moment, resolving this.
Hi, I have a theory that sounds like this:
Maybe this is intentional, and there's something in the Windows driver that generates a permanent MAC address for the card at install time. Possible abuse of the MAC pool so they can safely ship the same MAC to more than one customer across the world.
Can you install Windows and see if it changes the behavior in any way?