Welcome!
Please open a terminal and look at
lspci -nnk output.
Code:
00:19.0 Ethernet controller [0200]: Intel Corporation 82567LM Gigabit Network Connection [8086:10f5] (rev 03)
Subsystem: Intel Corporation Device [8086:0000]
Kernel driver in use: e1000e
Above is example output from my box. Is there a driver in use for your NIC?