I have a HB 859 di unit with gps on the bow and a HB 899 di hd si unit on the console and they are ethernetted together.

It seems that the console 899 unit does not pick up all the waypoints that I mark with the 859 while spidder rigging. But, I don't usually leave the 899 unit on when I am actually fishing.

Do both units have to be turned on for marked waypoints to show on both units? If not, what might be causing waypoints not to show up on both units- besides the cable not being connected tightly between the units.

Thx