How to set up your Optus NBN modem

Once you’ve signed up for an Optus NBN plan, the next big step to get online is setting up your Optus NBN modem.

May 05, 2022
4 min read

We are committed to sharing unbiased reviews. Some of the links on our site are from our partners who compensate us. Read our disclosure policies to learn more.

You’ve just signed up for an Optus NBN plan, which means you’re almost ready to get online. While you could get away with using your trusty BYO NBN-compatible router or modem-router with Optus NBN, Optus offers a good selection of NBN modems that require little configuration out of the box.

Before we get into what you need to know about setting up your Optus NBN modem, check out a selection of popular Optus NBN plans from our comparison engine.

Bullhorn
Pros and cons of using a provider modem
The two biggest pros of using a provider modem are they arrive preconfigured and ready to go out of the box, plus they’re so much easier to troubleshoot. If you prefer a BYO modem, you won’t have to think about hardware exit fees, you may be able to preserve your favourite settings, access faster speeds than provider modems (specifically compared to older models), and have a greater degree of freedom in tweaking your network settings. The biggest downside is potential compatibility and support concerns, which is why providers like Telstra and Optus strongly encourage you to use the modem they send.

Optus NBN modem options

Signing up for an Optus NBN plan means you’ll be sent one of three options. The Optus Ultra WiFi Modem is most common, but Optus may also provide a Sagemcom Fast 5366 TN modem-router. Those who sign up to an Optus Internet Gamer Plan can also receive the Asus TUF Gaming AX5400 router.

If you live in a larger home and need more range on your WiFi signal, there’s also an optional Optus Ultra WiFi Booster you can purchase (one is included in the Optus Internet Family Entertainer Fast plan).

Universal steps for setting up an Optus NBN modem

To get prepped for your setting up any of the NBN modems provided by Optus, download the My Optus app for guided installation. Once the Optus NBN modem arrives, placement is important. You want to position it near a power outlet, away from potentially interfering electrical devices and, ideally, in a spacious area that’s central in the home to best maximise WiFi coverage. If you have an NBN connection box, place your Optus NBN modem near enough to that networking device to connect via an Ethernet cable. For homes that don’t need an NBN connection box, place the Optus NBN modem near the NBN wall outlet (aka the telephone wall outlet).

Once positioned, plug in the power adapter to the Optus NBN modem and the other end into to a nearby power socket, then switch on the power. The NBN technology that connects your home and Optus NBN modem specifics will determine the next steps. But once you’re connected, be sure to use the WiFi details provided to connect your wireless devices and/or Ethernet cables to connect up to four wired devices.

Icon Tooltip  Light
What’s my NBN technology type?
If you’re wondering which NBN technology connects your home, head to the NBN website. At the top of the page, enter your address in the ‘Check your address’ field then confirm it from the drop-down options and click/tap ‘View results’. The results page includes a section entitled ‘Technology used in your connection’, which will tell you the NBN technology that connects your address.

Optus Ultra WiFi Modem setup guide

Optus Ultra WiFi Modem setup

Fibre-to-the-Premises (FTTP), Hybrid Fibre Coaxial (HFC) and Fibre-to-the-Curb (FTTC) homes will be using the Optus Ultra WiFi Modem as a router. This means connecting one RJ45 connector of the included Ethernet cable to the UNI-D1 (FTTP and HFC) or Gateway (FTTC) port on your NBN modem and the other end to the red WAN port on the Optus Ultra WiFi Modem.

Fibre-to-the-Building (FTTB) and Fibre-to-the-Node (FTTN) users need to connect one end of the telephone cable into the NBN wall socket and the other end into the grey DSL port on the Optus Ultra WiFi Modem. Be sure to have a direct connection with the telephone cable that doesn’t use any line filters.

Once these respective cables are connected, if everything is working as it should, the WAN and Internet lights on the front of the Optus Ultra WiFi Modem should light up within 20 minutes. If you don’t see any flashing activity lights on the Optus Ultra WiFi Modem after three hours, reach out to Optus NBN support.

For additional information, read the Optus Ultra WiFi Modem quick-start guide (PDF).

Sagemcom Fast 5366 TN setup guide

Optus NBN Sagemcom Fast 5366 TN modem-router setup

FTTP, HFC and FTTC users should use the Ethernet cable; connect one RJ45 connector of the cable to the red WAN port on the Sagemcom Fast 5366 TN and the other end to the UNI-D1 (FTTP and HFC) or Gateway (FTTC) port on your NBN modem.

Alternatively, FTTB and FTTN users should connect one end of the telephone cable into the NBN wall socket (without any line filters) and the other end to the grey port on the Sagemcom Fast 5366 TN.

Once plugged in, it shouldn’t take more than 20 minutes for you to see the WAN and Internet lights on the Sagemcom Fast 5366 TN indicating you’re connected. Optionally, test your connection by inputting the http://192.168.0.1 address into a web browser, then enter the username and password from the provided magnet to log in.

For additional information, check out the Sagemcom Fast 5366 TN quick-start guide (PDF).

Info Box
Got a landline phone service with Optus?
Then you’ll want to connect a compatible handset to your Optus Ultra WiFi Modem or Sagemcom Fast 5366 TN. Simply connect one end of a telephone cable to the Phone 1 port on either modem-router and the other end to the identically shaped port on a compatible handset.

Asus AX5400 Gaming Modem setup guide

Asus TUF Gaming AX5400 Optus NBN modem setup

For the Asus AX5400 Gaming Modem, connect the Australian plug to the power adapter, then connect that end to a power outlet and the other to the ‘DCIN’ port on the modem-router. FTTP, HFC and FTTC users should connect the Ethernet cable to the blue WAN port on the Asus AX5400 Gaming Modem and the other end to the Gateway (FTTC) or UNI-D1 port (FTTP and HFC) on your NBN connection box.

For FTTB and FTTN users, link the telephone cable between the grey DSL port on the Asus AX5400 Gaming Modem and plug the other end into the NBN wall outlet.

With those respective cables connected, now is the time to power on the Asus AX5400 Gaming Modem at the wall and via the power switch on the back right of the modem-router. Wait a few minutes for the Asus AX5400 Gaming Modem to automatically configure. You should see a solid white light on the DSL LED (FTTN and FTTB) or WAN LED (FTTP, HFC and FTTC) to indicate the internet is connected.

If you want to access the Asus AX5400 Gaming Modem’s admin page to change details like the WiFi username and password, type in router.asus.com or 192.168.0.1 into a browser address bar. The login name is ‘optus’ and the password is the same as the default WiFi password on the white label underneath the modem-router. From here, go to ‘Network Map’, then ‘System Status’ to change WiFi settings; just hit ‘Apply’ to save the settings.

For additional information, read the Asus AX5400 Gaming Modem quick-start guide (PDF).

More popular NBN plans with an included modem

Here are some of the most popular NBN modem bundles currently available.
Nathan Lawrence
Written by
Nathan Lawrence
Nathan Lawrence has been banging out passionate tech and gaming words for more than 11 years. These days, you can find his work on outlets like IGN, STACK, Fandom, Red Bull and AusGamers. Nathan adores PC gaming and the proof of his first-person-shooter prowess is at the top of a Battlefield V scoreboard.

Related Articles

Creative Sound Blaster Katana V2 review
Creative Sound Blaster Katana V2 review
The Creative Sound Blaster Katana V2 is an incredibly versatile soundbar with big bass and...
Graphic of family using internet | Best NBN plans available
The best NBN plans and NBN deals available (September 2022)
The place to visit each month if you want to know the latest and greatest...
JoJo All Star Battle R header
JoJo’s Bizarre Adventure: All-Star Battle R tries to balance modern touches with big omissions
An archaic anime fighter that goes big when it should have gone bold.
Photograph of a woman with pink hair using her SIM-only plan on her smartphone
The best SIM Only plans available in Australia (September 2022)
Your one-stop shop for the best SIM Only plans in Australia.