First let me say that I am no guru when it comes to all of this but Iwill tell you what I think I know. 1st you do not need serial cable with ****, the **** has a serial coonection on one and ethernet conn. on the other end. In your case which is like mine my rec. is not close to pc so I have to use wireless router. 1 powerline adapter at your pc and 1 adapter at or very near your rec. If you have the router ir should work with the **** setup. You can purchase various lengths of ethernet cables. I do not know if length affects signal from router. So you do understand me ethernet cables are used from modem to adapter and from alternate adapter to **** which then plugs directly to serial port on back of rec. I hope this has helped some. You can get setup tutorial in sv tutorials section.

Good Luck!! Also I hope it has not confused you.