Fixed Wireless will feature an NBN Co NTD box mounted on the wall. There is no cover on this sort of unit and the lights are readily visible from the get-go.
Correct connection of your hardware can vary based on your previous connection history however most services will make use of the UNI-D1 port for your modem. There are no corresponding lights on the NTD for this kind of connection, so refer to the modem status lights for confirmation in these cases.
If your connection and status lights all look ok, it’s time to look at your modem. Southern Phone provides the Comnect for connection across the entire range of NBN services.