Hmmm. Clearly your bow unit is not seeing the cockpit unit on the network. Could your network cable be kinked? I had a similar problem last year, had to replace the cable, worked fine after. This year, after installing 1.4 software (the basemap upgrade) I had to reset all of the network sources in the network settings on my Helix 9. Try that, it took a while, but finally kicked in and now works fine.
Tracker Pro V 175 WT Combo, 115 Opti
Helix 9 SI, 999 SI, 859, Terrova 55 I-Pilot Link, AS-ETH 5PG Network Hub
Navionics Plus, Lakemaster LOTW, Autochart Zero Lines
Talent hits a target no one else can hit
Genius hits a target no one else can see