Optus Ultra WiFi Modem login, restart, port forwarding and Booster

Sign in to the Optus Ultra WiFi Modem

1. Connect your Mac to the modem’s Wi-Fi, or plug it into a yellow LAN port.

2. Open http://192.168.0.1 in your browser.

3. Click Enter password and type the password from the bottom of the modem.

4. Click Login.

The menu has Home, My Wi-Fi, Connected Devices, Settings, Restart, Help and 4G Status info. Optus documents no password recovery; a factory reset erases all your settings.

Restart it properly

It may take several minutes for the modem to reconnect after a restart.

1. Press On/Off on the back to turn the modem off.

2. Unplug the power supply and wait 30 seconds.

3. Plug the power supply back in.

4. Press On/Off to turn the modem on.

From the settings menu

1. Sign in at http://192.168.0.1.

2. Click Restart; Optus says this menu restarts the modem.

Factory reset

1. To keep a copy of your settings, click Settings, then Continue below Modem Settings.

2. Click Maintenance › Backup & Restore › Create Backup file.

3. Click Restart, then Factory reset modem twice.

4. Click Continue and wait.

Without the menu, hold a paper clip in the Reset hole for at least 10 seconds. A reset erases your Wi-Fi name, password and port forwards.

Schedule a restart

Optus documents no scheduled restart for this modem.

Update the firmware

Optus’s guides for the Ultra WiFi Modem (Gen 2) describe no firmware update page or check. Its LED guide lists no update light either.

See connected devices

1. Sign in at http://192.168.0.1.

2. Click Connected Devices to see the list of devices on the modem.

Optus’s guides don’t describe pausing or blocking a single device from this menu. If strangers are on your Wi-Fi, change the Wi-Fi password under My Wi-Fi.

Block websites

1. Click Settings, then Continue below Network Settings.

2. Click URL Filter, then Add Address.

3. Type the website address without http:// or https://.

4. Click Apply.

UPnP and port forwarding

Optus’s guides for this modem don’t mention UPnP or NAT-PMP, so there is no documented switch for either. Port forwarding is documented.

The modem has a built-in firewall. Each forwarded port lets the internet reach that device directly, so forward only what a game or app needs and remove rules you no longer use.

Port forwarding

You need the IP address of the computer or console you forward to.

1. Click Settings, then Continue below Network Settings.

2. Click Port forwarding and type a Custom service name.

3. Choose a Service, or Other if unsure, and a Protocol such as TCP - UDP.

4. Leave External Host empty and enter the External Port, such as 6000-6100.

5. Enter the device’s address as Internal Host and the same ports as Internal Port.

6. Click Add to save the rule.

Prioritise calls and gaming

Optus lists QoS (Quality of Service) as not supported on this modem. For speed and reliability, Optus suggests connecting devices to the yellow LAN ports with the supplied cable.

2.4 and 5 GHz, and the channel

The modem is dual band, 2.4 and 5 GHz Wi-Fi 6. A green Wi-Fi light means it switches devices between the bands automatically; blue means it doesn’t.

1. Sign in and click My Wi-Fi.

2. Click the field next to Wi-Fi Name (SSID) below the network you want to rename.

3. Type the new name and click Apply.

4. Reconnect your devices with the new details.

Optus’s guides don’t say how to give each band its own name.

Change the channel

1. Sign in and click My Wi-Fi.

2. Choose a channel from the Channel Selection list.

3. Click Apply.

Optus suggests a new channel when the connection is intermittent.

Mesh: which node a device uses

The Optus Ultra WiFi Booster (Gen 2) pairs with the modem to form a mesh. Optus says nearby devices can use the booster automatically; the device decides when to roam.

1. Plug the booster in next to the modem and make sure its On/Off button is pushed in.

2. When the Mesh light flashes red, connect the booster to a yellow LAN port with an Ethernet cable.

3. When the Mesh light turns solid green, it has paired; unplug the cable.

4. Move the booster halfway between the modem and the weak spot, off the floor.

A red Mesh light means the booster is too far away. If it still won’t connect, hold its Reset button with a pin until the Power light turns red, then pair it again.

Guest network

Optus’s guides for this modem don’t describe a guest Wi-Fi network.

DNS settings

Optus documents no way to change the DNS servers on this modem. Set DNS on the Mac instead.

Connection status and logs

1. Sign in and click Home to see the modem information.

2. Click Settings, then Continue below Modem Settings, to see the internet connection information.

3. Check the Internet light; solid green means connected and solid red means a connection error.

4. Solid blue means the modem is using its 4G backup SIM, not the nbn.

Optus says 4G backup isn’t meant as a stand-alone service. If the light stays blue, check the modem’s cables or check your connection in the My Optus app. Under 4G Status info, the backup’s Data APN is LTEBROADBAND.

Manuals and downloads

• Optus device guides: OPTUS Ultra Wi-Fi Gen 2
• Optus Ultra WiFi Modem (Gen 2) quick start guide (PDF)
• Optus Ultra WiFi Booster (Gen 2) quick start guide (PDF)

Links go to the maker’s own pages.

Questions

Sources

• Optus device guides: Establish a connection to the modem settings menu (Ultra Wi-Fi Gen 2)
• Optus device guides: Guide to the modem settings menu (Ultra Wi-Fi Gen 2)
• Optus device guides: Restart your modem (Ultra Wi-Fi Gen 2)
• Optus device guides: Restore factory default settings (Ultra Wi-Fi Gen 2)
• Optus device guides: Set up port forwarding (Ultra Wi-Fi Gen 2)
• Optus device guides: Change Wi-Fi Hotspot channel (Ultra Wi-Fi Gen 2)
• Optus device guides: Guide to the modem LEDs (Ultra Wi-Fi Gen 2)
• Optus device guides: Block websites (Ultra Wi-Fi Gen 2)
• Optus device guides: Ultra Wi-Fi Gen 2 specifications
• Optus Ultra WiFi Modem (Gen 2) quick start guide (PDF)
• Optus Ultra WiFi Booster (Gen 2) quick start guide (PDF)

Checked on 1 November 2026.

More router guides