Ethernet suddenly stopped working after 4 years

Hello,

I've had my hackintosh up and running smoothly, with no issues whatsoever for the past 4 years. It is still running 10.10.1 because it worked for me (if it ain't broke..) I haven't had any problems with any of my current/new software or hardware until now. All of a sudden, my whole machine shuts off. All of the other electronic devices using the same surge protector were all fine! Nothing else shut off!!! Instant Panic.

I power it back up (whew) and it happens again...

Ethernet suddenly stopped working after 4 years