You've found yourself here because unfortunately your internet service is not working, sorry about that!
Here you will find some troubleshooting steps that will hopefully get you back up and running!
NBN Fibre to the Premises (FTTP)
NBN Fibre to the Node (FTTN)
NBN Fibre to the Curb (FTTC)
NBN Hybrid Fibre Coaxial (HFC)