Issue on boot up

[PaddyB]

I went into tool, option, connection and added a network connection with TCP at 10.10.10.1:3000 and restarted openCPN. Still not showing anything on dashboard?
Thx

No point doing that, the signalk server   broadcasts signalk data to that port, not NMEA0183. Click the bottle in the water icon top left of the screen and it will open a webpage to the signalk dashboard, then you can select server > plugin Config > convert signalk to NMEA to set up what sentences you want to be transmitted as NMEA