Ethernet connection disconnect en connects entire time

[kleynhansfred]

I have plugged in my ethernet cable en now the light come on and then immediately goes of again I have tried reinstalling the drivers for the ethernet port but still having the same problem

 

[Ralston18]

Are you using a motherboard LAN port, a PCIe slot Ethernet adapter, or a USB Ethernet adapter?

Which light is coming on and going off?

Have you tried another known working Ethernet cable? What is on the other end: a router, a wall outlet, powerline adapter....?

More information is needed.