Which Telstra Modem Do I Have? Identify Your Model (Gen 1, 2, 3 & 4)
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Not sure whether you’ve got a Telstra Smart Modem Gen 1, 2, 3 or the new Smart Modem 4? Identify it in seconds from the model number on the base, then jump to the right setup guide. Stuck? The Original PC Doctor will sort it out for you, onsite or remotely.
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Which Telstra modem do I have?
Flip your modem over and read the model number on the base sticker, then match it below:
| Model number | Generation | Wi-Fi | Setup guide |
|---|---|---|---|
| DJA0230 | Smart Modem Gen 1 | Wi-Fi 5 (ac) | Gen 1 setup |
| DJA0231 | Smart Modem Gen 2 | Wi-Fi 5 (ac) | Gen 2 setup |
| Cobra XH / LH1000 | Smart Modem Gen 3 | Wi-Fi 6 (ax) | Gen 3 setup |
| Smart Modem 4 | Smart Modem Gen 4 | Wi-Fi 7 | Smart Modem 4 setup |
Other ways to tell
- My Telstra app – your modem model is listed under your internet service.
- Box / paperwork – the generation is printed on the original packaging.
- Shape & ports – newer models are taller/tower-style; older ones are flatter.
Not sure which you’ve got? Tell us the model number off the sticker and we’ll point you to the right setup steps – or just fix it for you.
Common Telstra modem problems we fix
- Not sure which generation you have
- The model sticker is worn or unreadable
- The My Telstra app won’t show the model
- Deciding whether it’s worth upgrading
- Setup steps online don’t match your modem
- An older modem left over after a plan change
Identifying the exact model matters because login defaults, lights and setup steps all differ by generation — get the model right and everything else falls into place.
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
How do I know which Telstra modem I have?
Read the model number on the sticker on the base: DJA0230 = Gen 1, DJA0231 = Gen 2, Cobra XH/LH1000 = Gen 3, and Smart Modem 4 = Gen 4. You can also check the model in the My Telstra app.
What is the latest Telstra modem?
The Telstra Smart Modem 4 (Gen 4) is the current model – it runs Wi-Fi 7 with 2 GB RAM and 5G/4G backup.
Is my Telstra modem a Gen 2 or Gen 3?
Check the base sticker: DJA0231 is the Gen 2 (Wi-Fi 5). The Gen 3 is the Cobra XH / LH1000 and supports Wi-Fi 6.
Does it matter which Telstra modem I have?
Yes – login defaults, lights and setup steps differ slightly by generation, so identifying your model first makes setup and troubleshooting much easier.
More Telstra modem guides
← Back to the Telstra Modem Setup & Support hub.
Telstra Smart Modem 4 setup · Telstra modem lights meaning · Telstra modem login & password · Telstra 5G Home Internet modem setup · Telstra Smart Modem Gen 1 · Telstra Smart Modem Gen 2 · Telstra Smart Modem Gen 3
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