Can't get Ethernet working

I'm using a Dell Inspiron 5558 laptop and I'm trying to get Ethernet working. I have realtek FE Family Controller Ethernet and for some reason the RealtekRTL8100.kext isn't working. I've tried different kexts as well and I just cannot get Ethernet to show up. Can someone help me? My only form of internet access on macOS right now is USB tethering from my phone and I don't really want to download xcode of my cellular data.

submitted by /u/eRa_Tension
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