NBN speed FAQ

Short, plain-English answers to the questions frustrated Australian NBN users ask — each grounded in ACCC Measuring Broadband Australia and NBN Co figures, dated and verified.

Read: Why is my NBN slow?

How These Answers Are Grounded

How to Read Your NBN Speed Test Result

Your result has four numbers, and each tells you something different. Download is how fast data reaches you (streaming, browsing). Upload is how fast you send (video calls, backups). Ping (latency) is delay in milliseconds — lower is better for gaming and calls. Jitter is how much that delay varies. Compare your download against your plan's advertised speed and its ACCC typical evening speed, not the peak lab number. For the full walkthrough of what each figure means and what counts as normal for your tier, read the results guide.

Download

Data reaching you — streaming, browsing. Compare against your plan's advertised and typical evening speed.

Upload

Data you send — video calls, cloud backups. Often much lower than download on some technologies.

Ping (latency)

Delay in milliseconds. Lower is better for gaming and video calls.

Jitter

How much latency varies. High jitter causes call and stream stutter.

The Short Answers

The questions below carry the short answer only. Each links to the deep page where the full cause-to-fix, benchmark, or tier detail lives — this page is the map, not the destination.

When to Escalate vs When It's Your Setup

Two questions sort most slow-NBN cases. First: is the slowdown worst between 7pm and 11pm? A busy-hour drop points to congestion on your plan tier — check your ACCC typical evening speed and, if you are consistently below it, that is grounds to raise it with your provider. Second: is it slow on every device and over a wired connection too? If a wired test is fast but Wi-Fi is slow, the problem is in your home, not the NBN. If both are slow, the issue is your line, plan, or technology type. Use the links to move to the page that matches your case.

  1. 1

    Test wired and at a quiet time

    Run a wired test off-peak, then again during 7–11pm to isolate congestion.

  2. 2

    Compare against your plan's ACCC typical evening speed

    Consistently below it points to underperformance you can raise with your provider.

  3. 3

    Check Wi-Fi vs wired

    Fast wired but slow Wi-Fi means the fix is in your home, not the network.

  4. 4

    Match your result to your technology type

    FTTN, FTTC, HFC and Fixed Wireless each have realistic ceilings below FTTP.

Frequently Asked Questions

how to read nbn speed test results
Read four numbers: download (data reaching you), upload (data you send), ping/latency (delay in milliseconds, lower is better), and jitter (variation in delay). Compare your download against your plan's advertised speed and its ACCC typical evening speed, not the highest peak reading. See our full results guide for what's normal per tier.
why is my NBN slow
Common causes are peak-hour congestion (7–11pm), a plan tier below your needs, in-home wiring, Wi-Fi rather than wired, an ageing modem, or your connection technology (FTTN and Fixed Wireless run slower than FTTP). Our full diagnostic maps each cause to a fix, grounded in ACCC and NBN Co data.
how to fix slow NBN
Start with a wired test to rule out Wi-Fi, move your router to a central open spot, restart the modem, and test during evening peak. If you're consistently below your plan's ACCC typical evening speed, raise it with your provider or consider a tier change. Our fix checklist ranks each step.
what speed should I get on NBN
Real-world speed depends on your tier and technology type. NBN 50 and NBN 100 are common household tiers, but FTTN and Fixed Wireless may not reach the top of their tier. Compare against the ACCC typical evening speed published for your plan, dated 2026. Our technology explainer sets realistic expectations per connection type.
is my NBN plan delivering
Check whether your measured evening (7–11pm) download meets the ACCC typical evening speed your provider publishes for your tier. Consistently falling short signals underperformance you can raise with your RSP. Our plan-delivery benchmark shows expected versus typical evening speed by tier, grounded in ACCC Measuring Broadband Australia.
which NBN plan do I need
Match the tier to household size, usage, and connected devices — a single user browsing needs far less than a four-person home streaming 4K on several screens. Also check what your technology type can realistically deliver before paying for a higher tier. Our tier selector walks through household use to a recommended tier.