Compare the MAC address in bios to the MAC address on the sticker over the NIC.
If they are the same, download the latest NIC drivers from Intel.
https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=21642&lang=eng&OSVersion=Windows%208%2C%2...
If they are the same, download the latest NIC drivers from Intel.
https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=21642&lang=eng&OSVersion=Windows%208%2C%2...