was back on the water yesterday; my bow10gn4di would not even see the ML on network (BRAND new hub/cables/dongle); so again, restore defaults, worked a bit, then ML sonar image would 'freeze' w/all the data boxes still working/ok. Then the 'mega live source' lost message, then wait a minute and ML un-freezes and starts working;then freezes, rinse & repeat.
looked at console while bow was froze; console 10gn4si showing ML and never a hiccup.
Swapped bow to console; same result; glitchy, but recognized the ML on network this time. Several minutes later, freezes/lost source message/un-freezes, etc. Console 10gn4msi works perfectly at bow position
called humminbird; unit going back for repair; seems as though bow10gn4di has networking has issue; will report back