We're seeing this in our environment; we were on 9.98 and hoped updating
to 9.10 would make the issue go away. Unfortunately our test server on
9.10 won't keep anyone logged in. I'll post a solve if we find one.
@jacomaree Got this working today w/10.12.6 and a Dell USB-c - to
-Ethernet dongle. 2017 MBPs appear to require a 10.12.6 base. I did try
a USB-C to Thunderbolt Thunderbolt to Ethernet Ethernet, but didn't get
a successful boot.
