Modern network adapters don't require crossover cables -- they can accept normal network cables and mine did work fine before the Windows 10 upgrade.

So I'd like to find out what's changed in...

This used to be a simple network trick -> connect two Windows PCs using network cable, go into adapter settings -> IPv4 -> set one IP to 10.0.0.1 and the other 10.0.0.2, then you can easily see the...