Can't get Ethernet to work

Just installed a fresh copy of Sierra on my PC. Surprisingly it worked without any issue. My PC specs are:

Motherboard: Asus H97M-E CPU: Intel i5-4590 Graphics Card: MSI GTX 970 RAM: 4 GB

I used MultiBeast and installed the approparite drivers (Realtek ALC887 for audio and Realtek RTL8188 for network).

Audio is working great, but Ethernet just doesn't. I went into the settings and all OS X lets me do is set up a dial up connection. I tried various solutions: Niresh's AIO networking solution, MultiBeast, manually installing the kext but none seem to work.

I'd appreciate help. Also, on a side note - how do I install the graphics for my GTX 970? Thanks.