Thanks for raising this with us!
There was a maintenance done by NBNCo that started midnight and should have ended by 6AM AEST today. There's a possibility that the maintenance work could have disconnected the line completely, but since there's no outage report from NBNCo, we need to check this further.
Our initial tests so far indicate a possible line cut. However, it can also be interpreted that the modem is simply turned off or not connected at this point. Can you confirm the status of the modem lights so we'll know if we can have this issue raised to NBNCo directly at this stage or if additional tests over the phone is required.
Thanks for the reply. Just figured out why the internet connection hasn't been back. The disconnection was indeed casued by NBN maintanence. But my roommate, trying to reconnect, plugged the modem into a different wall socket during that time. Now have I replugged the modem and the internet is back. Thank you for reminding me to check the modem.