Aurora R4, no ethernet after lightning strike

Lightning struck tree. Wireless works fine. My landlords MacBook works fine connected to Ethernet. A giant oak tree got hit by lightning yesterday. EVERYTHING works except for my connection via my Alienware. I tried different cables and many diagnostic checks with no luck. 

What can I do? It’s a 2012 Aurora R4. I was planning on upgrading it but now I don’t know why my internet won’t work on it. I mean obviously the lightning did something. I called my ISP to come out tomorrow but my internet is working fine so it leads me to think it’s an internal hardware issue. 

Any suggestions or ideas?