We've just started deploying some new PCs that have the intel i217v ethernet controller and there has been an intermittent problem where if the interface is set to 100mb full duplex it will drop the connection and windows will say the network cable is unplugged. Changing some of the advanced settings (ie. interrupt moderation, interrupt moderation rate, efficient ethernet etc) will sometimes resolve the problem temporarily. Changing the speed back to Auto will fix the problem however this is not ideal for our network where the switch ports are set to 100 full rather than auto (no this cannot be changed).
The drivers are up to date and I have tried it with and without the extras that come with the drive