Ive tried reading many forums on this and haven't found an answer to my problem yet. I have two HDS 5's, connected with an Ethernet cable. I have tried selecting the network option in the sonar menu, upon doin so both sonar screens go blank. After pressing Menu, Menu, Network, devise list, neither units acknowledge the other is connected. They have not shared any waypoints or trail on the GPS screen or any sonar data. What do I need to do different? Thanks Capt. Nick