Just put my board together. Have power. Have antenna outside. Updated firmware and configured to rover on the f9p. Used teensy flasher to program -all in one for 4.x. . Not sure if that’s right as I’m getting no light on the teensy.
If your teensy is correctly receiving GPS, it will have a blinking orange LED on it. Try plugging the receiver into the AOG serial monitor, and see what NMEA sentences it’s putting out. It should be sending out GGA, and VTG, with numbers in between the commas.
Next step would be to configure your computer LAN port to assign a static IP from what I see from your pictures.
Do you checked the YouTube videos? training videos