Ethernet gone after NVIDIA Web Driver

I've had to reinstall the OS after one of my kids accidentally said yes to an Apple update, which scuppered what was up until then, a very stable system.

I've used the latest Yosemite from the Apple Store and installed using Unibeast (Chameleon rather than Clover).

I used Multibeast with a DSDT for my board plus various options, including the Realtek Ethernet kext.

All was good, apart from hopeless graphics using Yosemite's inbuilt driver.

I then added an NVIDIA web driver for the...

Ethernet gone after NVIDIA Web Driver