Problem with interface em0 - fresh install FreeBSD 12

[Zbigniew Komarnicki]

On Wed, 27 Mar 2019 17:45:16 -0400
Ernie Luzar <luzar722 at gmail.com> wrote:

> Is your em0 built into the motherboard or a plug in board.
> How old is your motherboard.
> 
> My em0 and em1 were built in on the motherboard. Had no problems release 
> 9 through 11. For 12.0 started having network problems. Disabled them in 
> bios and replaced with PCIE type plug in cards. Every thing back to normal.
> 
> Just my 2 cents.
> 

It is built into motherboard. I use this motherboard:
https://www.asus.com/Motherboards/CROSSHAIR_V_FORMULAZ/