[moaningmags]

When you connected the router to the modem you said the internet light came on.
Given that connecting the computer to either the router or the modem using 2 different ethernet cables hasn't worked I think it's safe to assume your Network Card is knackered and needs replacing.

And to check again cos you still haven't answered me, is the local area connection the one that says network cable unplugged, is it enabled or does it still say disabled?