Restart your nbn™ box (NTD)
Please turn off the power to the nbn™ box (NTD) power supply at the wall outlet. Doing this resolves any temporary device issue that could be impacting your connection.
Disconnect the power cable from the nbn™ (NTD) connection box for 2 minutes then reconnect the cable.
Please turn the power back on to the NTD power supply at the wall outlet.
The nbn™ box will take 3 to 5 minutes to come online. If your connection doesn't work you may need to reset your modem.
Has this fixed your internet?