I have checked your NBN-HFC 50/20 service on our portals and it shows your NTD is offline.
Can you check the NBN-NTD unit is plugged in and powered on? If it was on, just turn it off and on again and see if it trains up.
What is the status of the lights on the NTD?
Let me know how you go.
I have forgotten to mention, for the lights in the black device (I do not know its name), the 2 lights on the left is on all the time, the third light is blinking, the last light is never on.
The call's purpose is to inform you that we have identified that the issue is with the network controlled by the NBN co. This unfortunately means only NBN co. technicians have the authority to fix this fault.
At the moment this has been raised to our Engineering Team for further handling and investigation, assessment may take 24-48hrs and you'll receive an update via SMS or Phone call.
Let us know should you require further assistance.