MLAT not Active on FlightFeeder 7.2.2

FlightAware ADS-B Flight Tracking
1

I have some friends that have the new FF orange with software 7.2.2 and everything works OK except for MLAT…
In the status page, all the buttons are green except MLAT…

What are the requirements for MLAT to work (i know the 4 radar rule)…
Network requierements?.. Firewall Rule?..

I’m asking because one of my friends (with MLAT off) lives very near another friend (with MLAT on)…

es.flightaware.com/adsb/stats/user/puigjorge (MLAT ON)
es.flightaware.com/adsb/stats/user/westroca (MLAT OFF)

2

The location details on the FA website need to be accurate.
The user can update them in es.flightaware.com/adsb/stats/user/westroca

A consistent Internet connection is also required.

3

Yes, it’s off because the receiver location has not been specifically set (the Orange FFs do not have GPS)
If your friend sets their exact location via the stats page and then reboots the FF then mlat should start up.