@svalding What would be interesting to know is what is different between the two docks.
Please do the following
Schedule a debug deploy/capture (tick the check box for debug before you submit the task) for the nic of the working dock. It doesn’t matter if its a capture or deploy because we are not going to do either.
PXE boot the target computer, after FOS boots you should see several screens of text press enter a few times until you get to the linux command prompt.
Key in
lspci -nn | grep etwork
Record what you see there for the network adapter. The hex codes are important.
Repeat the same process with the non-working dock. You may get warning messages about not able to access the network, but it still should allow you to get to the linux command prompt.
Collect the output of the lspci command from above.
Please post the output of those two systems in this thread.