No Intenet Access Need Help Diagnosing Underlying Issue

[MarkHaysHarris777]

On my Ethernet connection I see no green or yellow LEDs lit.

Any ideas how I can get it working again?

Gently reseat the RJ45 plug (at each end of the cable).  There are eight(8) small brush wires inside and sometimes the wires do not drop into their own slot, but instead ride up and never make contact.  Often a cable plug gets 'unplugged' at the router end (confusion or other reasons).  Physically make sure that each end of the cable has a good connection;  lack of LED(s) on either end (for that channel) means the cable is not physically connected.