Optus Modem Login: 192.168.0.1 and Admin Password
Log in to Optus at 192.168.0.1 with admin and the label password. WiFi, app and reset.
Connect to your Optus router first by WiFi or cable. Optus Ultra WiFi modems are also managed in the My Optus app.
Optus modems in Australia, such as the Sagemcom Ultra WiFi Modem, open their settings at 192.168.0.1. Some older Optus units use 10.1.1.1.
The username is admin and the password is on the modem label. Here is how to log in, change WiFi and reset.
The fastest way in: tap the login button in the box at the top of this page, then sign in with the details on your router label.
How to log in to your Optus router
- Connect your phone or computer to the modem WiFi, or plug in an Ethernet cable.
- Open a browser and type http://192.168.0.1 in the address bar. Older models may use http://10.1.1.1.
- Enter the admin username and password from the label or the table below.
- Once logged in, change the admin password and check that WiFi security is WPA2 or WPA3.
If the page does not open, check your Default Gateway with our Router IP Finder. ISP builds sometimes use a different address.
The 192.168.0.1 address is the one I try first on any Optus that will not open.
Optus default IP, username and password
| Device | Login address | Username | Password |
|---|---|---|---|
| Optus Ultra WiFi Modem (Sagemcom) | 192.168.0.1 | admin | On the label |
| Older Optus modems | 10.1.1.1 or 192.168.0.1 | admin | admin or label |
| After setup | Same | admin | Your own password |
If the label password fails, it was changed. Reset to restore it. The label-password detail is the one I check first on any ISP-supplied Optus.
How to change the WiFi password on a Optus router
- Log in at 192.168.0.1.
- Open Wi-Fi settings.
- Change the network name and password, then save.
- Reconnect your devices.
The My Optus app can also change WiFi. Need a strong key? Try our WiFi Password Generator. For me, the My Optus app is where every Optus WiFi change starts.
Optus login problems and fixes
- 192.168.0.1 will not load: make sure you are on the router WiFi, not mobile data or a VPN, and type http:// in front.
- Wrong password: check the label first. If you or your ISP changed it, the defaults will not work.
- Page loads but login fails: clear the browser cache or try a private window. Some routers lock you out for a few minutes after several attempts.
- Router from your ISP: the provider may manage it. Their app or support line can reset the admin password.
- Still locked out: a factory reset restores the label login, but erases your settings.
When an Optus login will not work, I check the label before I touch anything else.
How to reset a Optus router
- Keep the modem powered on.
- Press and hold the reset button for about 15 seconds.
- Release and wait several minutes while it restarts and reconnects.
- Log in with the label details and set up WiFi again.
NBN connections usually return automatically after a reset. The 15-second hold is the timing I trust before I reach for a reset on an Optus.
Optus modems on NBN
Optus customers in Australia usually have the Optus Ultra WiFi Modem or an older Sagemcom model. These open at 192.168.0.1, with the username admin and the password on the modem label.
Optus also offers the My Optus app for account management and some WiFi settings, depending on the modem. My first stop is the My Optus app whenever an account detail needs checking.
Using your own modem with Optus NBN
- FTTP and HFC: most routers work by connecting to the NBN box and setting WAN to DHCP (automatic).
- FTTN and FTTB: you need a VDSL2 modem router.
- Fixed Wireless: connect to the NBN outdoor unit’s box with DHCP.
Check Optus’s support pages for current settings, as some plans need specific VLAN or login settings, and Optus home phone services may need the Optus modem. The FTTN-and-FTTB detail is the one I mention first when a plan needs a special setup.
Optus 5G home internet
If you have Optus 5G Home Internet instead of NBN, your modem uses mobile signal. Place it near a window facing the nearest tower and use the signal readings on the web page to find the best spot. I see the window-spot fix work most often in homes with thick walls.
Optus modem lights
- Power solid: on.
- Internet off or red: no connection to the NBN.
- WiFi off: WiFi disabled.
- WAN or DSL flashing: trying to connect.
If the internet light stays off, restart the NBN box and the modem, waiting two minutes between them. The power-light read is the first thing I check when an Optus modem looks dead.
Optus and the NBN box
On FTTP and HFC, a separate NBN box connects to your modem. Many issues are with the NBN box, not the Optus modem. Check its lights too, and restart it first when internet drops. The NBN-box-first order is the sequence I follow before I blame the modem.
