If your service is offline, power cycling your devices is a great first step to your regaining internet connection.
A power cycle is simply just turning the device off and back on.
Turn off both the nbn™ box (NTD) and your wireless router.
We recommend waiting at least 5 minutes.
Turn the nbn™ box (NTD) back on.
After waiting another minute, turn on your wireless router.
Please note, it can take between 5 minutes and 30 minutes to restore the connection.