Thank you for the post. We do not have Windows 2016 driver support for X540-T2, you may refer to this website for the list of supported Intel NIC in Windows 2016.
Are there plans to provide drivers for the X540-T2, or are we relying on the Windows Server 2016 in-box drivers from now on?
There are drivers for Windows 10 for this card, so I would hope that Windows Server 2016 drivers will be made available!
Further checking, you can use this Windows 2016 driver for X540 series at
Hope this helps.