Originally Posted By: SatKartr
via a Netgear powerline ethernet adapter

Well, there's your problem.

Seriously, those things are notorious for causing trouble. Have you tried connecting a laptop or another computer-like device to that jack, something which will give you a little more feedback as to the nature of the issue?

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris