Ethernet B75ma-p45 not working

[blazerfx]

Hey guys,
I'm New at building hackintosh.
My first hack is fine, everything works how it should be, except my Ethernet... I've already tried do installiert customac or the rtl driver but it just won't work.

 

[BreBo]

@blazerfx, please update your profile (personal details) with your Motherboard or Make/Model, CPU and Graphics Card.

Profiles need to contain at least your primary system to assist others with helping you.

Make sure Ethernet is enabled in your BIOS.
Remove any previous installed RTL network drivers from /Library/Extensions

Download KextBeast 2.0.1 and RealtekRTL8111-v2.2.1.zip
Place RealtekRTL8111.kext from the RealtekRTL8111-v2.2.1.zip file on your desktop.
Run KextBeast installer
Select the destination folder: /Library/Extensions
Reboot