Optus Speed Test
This diagnostic utility validates the performance of your Optus connection. It is critical to distinguish between the two primary internet types Optus provides: Optus NBN (using the National Broadband Network infrastructure) and Optus 5G Home Internet (using mobile towers). Your speed test results will vary fundamentally depending on which technology you utilize.
Understanding Your Speed Metrics
When analyzing your connection integrity, focus on these three performance vectors:
Download Throughput: On NBN plans (e.g., NBN 50, Home Superfast), speeds should align with the "Typical Evening Speed" stated on your bill (usually ~50 Mbps or ~100 Mbps). On 5G Home Internet, speeds are highly variable and can fluctuate between 50 Mbps and 400 Mbps depending on how many people are using the local tower.
Upload Throughput: Optus NBN plans are Asymmetrical. A standard NBN 50 plan has a max upload of 20 Mbps. If you are on the 5G Home Internet plan, upload speeds are typically capped around 20-40 Mbps, regardless of how fast your download speed is.
Latency (Ping): NBN connections (FTTP/HFC) typically offer low latency (10-20ms). 5G Home Internet naturally has higher latency (30-60ms) and "jitter" due to the wireless nature of the connection, which can impact competitive gaming.
What Results Should You Expect?
The "4G Backup" Trap
The Optus Ultra WiFi Modem is designed to keep you online if the NBN fails. However, the backup speed is often capped. Benchmarks include:
NBN (Normal Operation): ~90-100% of plan speed.
NBN (Backup Mode): Exactly ~12 Mbps Download / 1 Mbps Upload.
5G Home Internet: highly dependent on signal strength (check the lights on top of the modem).
If you pay for NBN 100 but your speed test consistently shows 12 Mbps, check your modem display. If it says "4G" or "Backup," your main NBN line is broken.
Why Is Your Optus Connection Slow?
Before contacting the "G'day" team, verify these common configuration faults:
Tower Position (5G Users): The Nokia FastMile 5G modem is directional. Rotating the modem 90 degrees or moving it to a window facing the nearest tower can double your speed instantly.
Game Path: If you are a gamer experiencing lag, check if "Optus Game Path" is enabled in your My Optus app to optimize routing.
Wi-Fi Congestion: The Ultra WiFi Modem Gen 2 is Wi-Fi 6 capable. Ensure your devices are connecting to the 5GHz band. Old devices on 2.4GHz will choke the speed.
Optus Technical Configuration Data
| Parameter | Configuration Details |
| Modem Models | Ultra WiFi Gen 2 (Sagemcom 5366) / Nokia FastMile 5G |
| Gateway IP | 192.168.0.1 |
| Admin Username | admin (Password is usually optus or on sticker) |
| Backup Indicator | "LTE" light or "Signal Strength" bars on display |
| Support App | My Optus App |
How to Get an Accurate Test
Wireless testing is unreliable for verifying NBN or 5G speeds due to the double-brick construction of many Australian homes.
To confirm the actual speed delivered to your premise, connect a Cat6 Ethernet cable directly from the Optus modem (Yellow LAN Port) to a laptop. This isolates the ISP connection. If this wired test is fast, your NBN connection is fine, and you need to improve your Wi-Fi coverage.
When to Call Support
Escalate the issue to Optus support if you observe these specific failures:
Stuck on Backup: Your internet works, but speeds are capped at 12 Mbps and the modem shows "4G" or "LTE" for more than 24 hours.
Red Signal Light: On the 5G modem, a red center light means no 5G signal is detected.
Packet Loss: Frequent dropouts during Zoom calls despite good speed test results.
You can check network status and chat with support directly via the My Optus App or by calling 133 937.