Ethernet suddenly died

The Ethernet connection suddenly just died.
I can see on the router it has negotiated 1GB but ipconfig shows "media disconnected".
I have tried different ports on the router and a different cable but no change.
Did my motherboard ethernet port just die??

Fix Media disconnected error message on Windows 10 (Solved) some things to try if you already tried restarting PC and router

It seems to be the router. Plugged in an old router and everything works again.