Hi, i am using my onboard networking card (Atheros AR8151 PCI-E Gigabit Ethernet Controller (NDIS 6.20)) the only issue is my gigabit is not actually working, my brother is ussing the sm motherboard as me and on the sm networking and is receiving gigabit
Did you get any error message when the networking card did not work? Did you make any changes before the issue occurred? Please provide the screenshot about IPCONFIG/ALL from your CMD for further troubleshooting.
In general, I would like suggest you update the network card driver to the latest for check.
Also, you can try some tips about network issue from the links below and check if they are helps:
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