Problems with the Realtech 811 KEXT for GA-Z77X-UD4H

Hello,

supposedly the mother board GA-Z77X-UD4H the network chip is G-LAN, and I found out that it is property of Realtech 811.

Installing the KEXT od Realtech 811 in UEFI, the network does not work.

NOTE: I have also tried with the Realtech 811 KEXT form multibeat

QUESTION: Did anyone with the GA-Z77X-UD4H find a solution to this problem?

Thanks in advance & kind regards,
Bori13