TPG Modem Lights Meaning – What Each Light Means (& How to Fix)
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Wondering what your TPG modem lights mean? Here’s what the power, internet, DSL and Wi-Fi lights tell you – and what to do when the internet light is red. If it won’t go green, The Original PC Doctor can get you back online, onsite or remotely, no fix no fee.
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TPG modem lights – what they mean
TPG supplies NetComm (and some Huawei/ZTE) modems. On a typical TPG NetComm modem the lights mean:
| Light | Meaning | What to do |
|---|---|---|
| Power green | Modem on | Normal |
| Internet/Online solid green | Connected to the internet | All good |
| Internet red | No connection / auth failed | Restart; if it stays red, check line/settings |
| Internet/DSL flashing | Connecting / syncing | Wait a few minutes |
| Wi-Fi green | Wi-Fi on (flashing = activity) | Normal |
| No lights | No power | Check power switch and socket |
Exact labels vary by model – tell us what colour you see and we’ll tell you what it means and fix the cause.
Common TPG modem problems we fix
- Red internet light
- DSL/internet won’t sync
- Flashing that won’t stop
- No lights at all
- Wi-Fi light off
- Light meanings differ by model
A flashing line light that never goes solid is a sync or cabling issue; a solid line but a red internet light is usually a settings or authentication problem — two very different fixes, so identifying which saves time.
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
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Frequently asked questions
What does a red internet light mean on a TPG modem?
A red Internet/Online light means no connection or a failed authentication. Restart the modem; if it stays red, the line or the internet/PPPoE settings need checking.
What colour should my TPG modem light be?
The Internet/Online light should be solid green – that means you’re connected to the internet.
Why is my TPG modem internet light flashing?
A flashing internet or DSL light means the modem is negotiating or syncing the connection. If it never goes solid green, there’s a line or settings issue.
My TPG modem has no internet – can you help?
Yes – we diagnose whether it’s the NBN line, the modem, the Wi-Fi or the TPG settings and get you back online, onsite or remotely.
More TPG modem guides
← Back to the TPG Modem Setup & Support hub.
TPG NetComm NL20 setup · TPG modem login & password
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✔ No fix, no fee · ✔ Onsite & remote · ✔ Same-day available · ✔ Since 2001
