Always on NIC with e1000 driver we have to disable tcp-segmentation to avoid Hardware unit hang. It’s not better to disable this behaviour by default?
What do you think @giacomo and @davidep?
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I do not think so. I’ve used the driver many time without errors.
So the problem is relevant to your specific hardware.
You could try also to search for a newer driver inside ELRepo or from the manufacturer site.
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I investigated times ago with @filippo_carletti and he suggested me to disable tcp-segmentation.
Maybe a problem only related to Fujitsu hardware? But Fujistu is no more available so we don’t have the problem 
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For me, I see issues on only one of my 2 built in ports that both use the e1000 driver, so it’s not every card that uses the driver. Also when it does happen it’s very infrequent, so it’s a certain combination of events that lead to it.
Easy enough to fix with:
db networks setprop enp0s25 ethtool_opts "\"-K \${DEVICE} gso off gro off tso off\""
Cheers.
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