iiNet TG-789 (BudiiLite) Modem Setup & Troubleshooting
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Setting up the iiNet TG-789 (also sold as the BudiiLite)? This Technicolor gateway is the modem iiNet has shipped to thousands of Australian homes for FTTN, FTTC and ADSL. Below is the full setup, what the lights mean, and how to log in – plus expert help if it won’t come online. The Original PC Doctor sets up and fixes iiNet modems Australia-wide, onsite or remotely, no fix no fee.
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About the iiNet TG-789 / BudiiLite
The Technicolor TG-789 is a dual-band Wi-Fi modem-router with a built-in VDSL/ADSL modem and Gigabit LAN ports. On most iiNet services it arrives pre-configured, so for a standard connection it’s largely plug-and-play – but FTTC and BYO setups sometimes need the connection details re-entered.
Setting up the iiNet TG-789 – step by step
- For FTTN/ADSL, run the grey DSL cable from the modem’s DSL port to the phone wall socket. For FTTC, connect to the NBN connection device; for FTTP, use the WAN/Internet port to the NBN box.
- Plug in the power and switch on – allow a few minutes for it to start and sync.
- Wait for the Broadband/DSL light to go solid, then the Internet light solid green – that means you’re online.
- If it doesn’t connect, log in at 192.168.1.1 and check the broadband username/password (your iiNet connection details).
- Join Wi-Fi using the network name and password on the sticker on the back of the modem.
iiNet TG-789 status lights (typical)
| Light | Meaning |
|---|---|
| Power – green | Modem is on |
| Broadband/DSL – solid green | Line is synced |
| Internet – solid green | Online |
| Internet – red | No connection / wrong broadband login |
| Broadband – flashing | Trying to sync the line |
| Wireless – green | Wi-Fi is on (flashing = activity) |
To change settings, log in at 192.168.1.1 with username admin and the password on the back-label sticker (each TG-789 has a unique password).
Common iiNet modem problems we fix
- No internet – modem connected but no connection or DSL/Broadband light won’t sync
- Wi-Fi keeps dropping out or won’t reach the back of the house
- Forgotten admin or Wi-Fi password / locked out of 192.168.1.1
- Replacing or upgrading from an old BudiiLite / TG-789 to a newer modem
- Slow speeds on FTTN/FTTC that should be faster
- Setting up after switching to iiNet or moving house
Why The Original PC Doctor
- Since 2001 — 24+ years of Australian computer & network support
- No fix, no fee — you only pay if we solve it
- Onsite & remote — whichever is faster, same-day available
- All NBN types — FTTP, FTTN, FTTC, HFC, plus 4G/5G backup
- 1,300+ verified customer reviews
Frequently asked questions
How do I set up the iiNet TG-789 modem?
Connect the DSL cable to the phone socket (or the WAN port to the NBN box for FTTP), power on, wait for the Broadband and Internet lights to go solid green, then join Wi-Fi using the details on the back sticker. It’s usually pre-configured for iiNet.
What is the login for the iiNet TG-789?
Browse to 192.168.1.1 and log in with username admin and the password printed on the sticker on the back of the modem – each unit has a unique password.
What does a red internet light mean on the iiNet modem?
A red Internet light means no connection – often a line-sync issue or the wrong broadband username/password. Restart it; if it stays red, the line or the connection details need checking.
My iiNet modem won’t connect after a move – can you help?
Yes – we re-enter your iiNet connection details, confirm the right NBN port and technology type, and get you back online onsite or remotely.
Is the BudiiLite the same as the TG-789?
Yes – BudiiLite is iiNet’s name for the Technicolor TG-789 gateway.
Can you set up Wi-Fi and improve coverage?
Yes – we set the network name and password, tune channels and placement, and add mesh Wi-Fi where needed for whole-home coverage.
More iiNet modem guides
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iiNet modem lights meaning · iiNet modem login & password
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