i had the exact same issue, i have a MSI B350m motar motherboard
i just spent a couple of hours going through the "new" loaders. none of them worked. i'd always get to the "screen will stop updating shortly" point, but it wouldn't show up in the finder, or get an IP address at all.
i then tried the 1.02b loader, and it works a charm! i've got a dual port intel nic in there, and as long as i plug into that, it works! didn't have to disable anything, or change any settings.
i havent actually installed it yet, i've just got it to finally get an IP address, so fingers crossed it keeps working!
***EDIT****
literally 5 min later. I GOT THE 918 loader working!