Have 2 hr24-500 1 hr24-100 and a hr20-700 all connected. Had been working ok for last couple of months now last nite all receivers started being disconnected from network. Have tried everything from rebooting router all receivers, tried different ports on router, new Ethernet cable. Anything else I can try before I try ordering a new cinema connection kit? Also should I still be able to play thing from all receivers even if no receiver will connect to Internet?