Your suggestions required.

i want to give a live demo about ADS-B and flightaware to my students.Unfortunately i am not able to extend my internet connection to upstairs and terrace.
Will live interface (or web interface) work without internet connectivity?
Please clarify

My experience is that the web display stalls trying to load the map if there is no internet connection. The map is loaded before the plane icons, so you won’t see those either. You could make a video, or take a series of screen shots, and show that standalone.