Aurora R7, motherboard replaced, ethernet not working

My motherboard was recently replaced (10 A.M. this morning) under warranty after issues with my computer (not network related). After it was replaced, my ethernet did not work. There is an orange light on the back of my computer near my ethernet port, but no flashing light indicating it's connected. I'm currently using WiFi as a way to connect. I've gone through Dell Support and have eventually reset my PC with no success in fixing my issue. The internet is working for other computers in the house. I've had no issues before today. I've tried a different cord with no success. Any ideas as to how to fix this issue? Thanks