Comment 5 for bug 1753662

This might be related (not exactly the same):
https://sourceforge.net/p/e1000/bugs/524/
One says 1.6.42 fixed his issue.

Looks like Intel has around 10 releases between 1.4.25 and 2.1.14, so it may not be handy to bisect.
https://downloadcenter.intel.com/download/24411/Intel-Network-Adapter-Driver-for-PCIe-40-Gigabit-Ethernet-Network-Connections-Under-Linux-?product=82947