Wireshark data posted privately. Some info about the data:
The problematic client is getting a dhcp address successfully of 10.241.96.20. (It says it for PXE and I can see it pop up on the DHCP server.)
I let the capture run from a computer right beside (also on the same vlan and switch) . The capture ran for two loops of “no configuration methods succeeded”. There are a lot of TCP retransmissions coming from the fog server.
To simplify matters early on I unplugged 3 of the members of the fog’s NIC team so it only has one right now and I am pretty sure the capture caught the tail end of a computer lab imaging.
I see the “malformed” dhcp packets, but I have no idea what is causing them… aside from laughing at their name I am reading up on the topic.