Hi. Just finally updated my ancient belkin modem to a Netgear D3600WiFi modem router which works really well. However. I have a old G5 Mac without wireless so have always connected through my old belkin modem with Powerline adapters over my house wiring circuit:confused. Unfortunately the powerline adapters no longer work although both lights are flickering on the units. Netgear say they should work. Any suggestions?