Can you tell me why my cable does not allow me to connect to the internet?
The cable runs between a computer and a router.
PC || RJ45---------------------------------------------RJ45 || Router
This works well. Then I use the femail connector on the right below...

Then I extend it thus...
PC || RJ45---------------------RJ45 F/Male Connector--------------------F/Male connector RJ45-----------------RJ45 || Router
This does not work. The wiring is all straight through. No crossover.
What is the problem? How can I fix it?