I needed something to get Intenet radio wireless to Yamaha RX-V575. I bought D-Link DIR-600 for that. Now it seems impossible to link D-600 to my wireless network. I have Zyxel P-660HN-T1A as a modem for my ADSL-connection. When cabled, DIR-600 works ok, but when plugged out, signal goes until buffering ends. Any hints how to solve ths problem?