I done some testing and it seem my Belkan ethernet over powerline is giving me crap speed. When I stream a video file from my server to wireless router it works fine. However, the same file to same router -> Belkan over powerline kit -> TP-Link AP, it lags. Hell, even without the TP-Link AP, my PC is getting a lot of high pings. I see some peeps here got good result with ethernet over coax and want to try it out myself. However, I worry that my cable modem will mess up the network.