NBN HFC NTD Lights
| Light | State | Meaning | |
| POWER | Off | Connection Box has no power. | |
| Green | Connection Box has power. | ||
| DOWNSTREAM | Off | Connection Box has no power. | |
| Green | Successful downstream connection. | ||
| Flashing | Searching for downstream connection. If ONLINE light is on, firmware upgrade in progress. | ||
| UPSTREAM | Off | Still searching for downstream connection, or Connection Box has no power. | |
| Green | Successful upstream connection. | ||
| Flashing | Downstream connection found; searching for upstream connection. If ONLINE light is on, firmware upgrade in progress. | ||
| ONLINE | Off | Connection Box is offline or has no power. | |
| Green | Connection Box is online and browsing should be possible. | ||
| Flashing | Downstream and upstream connection found; retrieving setup information from NBN. | ||
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