How to reduce lag on nbn™: the complete troubleshooting guide

Lag has several distinct causes, and the fix depends entirely on which one you have. Treating a routing problem like a Wi-Fi problem wastes hours and changes nothing. This guide works through every major source of nbn gaming lag in the order a technician would check them: starting inside your home, where most lag actually lives and where you have the most control, then moving out to your connection type, your ISP's peak-hour performance, and finally the routing path to overseas servers.  

Each step has a diagnostic test and a specific fix. Whether you are on FTTP, HFC, FTTC or FTTN, grinding ranked on a competitive shooter or just trying to finish a raid without dropping, follow the steps top to bottom and stop at the one that solves your problem. 

Step 1: find out whether the lag is in your home network or beyond it 

Establish where the lag originates before you change a single setting, because the fix is completely different at each level. Home network problems (Wi-Fi, your router or cabling) are yours to fix in minutes. Connection-type and ISP problems (congestion or routing) need a plan change or a support ticket. A 60-second test tells you which camp you are in. 

Run a latency test in under 60 seconds 

1. Plug your gaming device straight into the modem with an ethernet cable. This removes Wi-Fi as a variable. 

2. Run a ping or speed test (for example Superloop’s speed test or fast.com) at around 8 pm on a weekday, when the network is busiest. 

3. Run the identical test the next morning at about 10 am, when the network is quiet. 

4. Compare the ping (latency) figures, not the download numbers. 

Read your result 

• Peak-hour ping much higher than off-peak (more than about 15 ms higher): the cause is most likely ISP congestion or routing. Skip to Step 4. 

• Ping similar at both times but consistently high (over 40 ms): the cause is more likely your home network or connection type. Continue with Step 2. 

Use a real-world benchmark to judge your numbers. Independently measured ACCC data recorded Superloop's peak-hour latency at 8.5 ms, and 8.4 ms across all hours (ACCC Measuring Broadband Australia, Report 33, June 2026, data collected March 2026), consistent with 8.8 ms in Report 32 and 8.7 ms in Report 31.  

For competitive play, the target is under 30 ms, so a well-routed nbn connection should leave plenty of headroom. If your peak-hour ping sits in the hundreds, that is a fault to chase, not the normal state of nbn gaming. 

Step 2: fix your home network first 

Most lag that gamers blame on the nbn actually starts inside the house, and these fixes cost nothing and take minutes. Work through them before you touch anything to do with your plan or provider: . 

• Go wired. A direct ethernet cable to your router removes Wi-Fi interference, signal drop-off and channel congestion in one move. For any latency-sensitive game, wired beats wireless every time, even on a strong Wi-Fi 6 or Wi-Fi 7 network. 

• If you must use Wi-Fi, move closer to the router, switch to the 5 GHz or 6 GHz band rather than 2.4 GHz, and keep the router out in the open rather than in a cupboard or behind a TV. Walls, fish tanks and microwaves all weaken the signal. 

• Cut background traffic. Large downloads such as game patches, console updates, cloud backups, or a housemate streaming 4K eat the bandwidth your game needs and trigger lag spikes during peak hours. Pause downloads while you play, or schedule them overnight. 

• Turn on QoS if your router supports it. Quality of Service prioritises gaming traffic over everything else on the network. Enable it and add your console or PC as a priority device. 

• Update and restart. Outdated router firmware causes instability and packet loss. Install the latest firmware, then restart the modem and router. Superloop customers can also tap the Refreshify button in the Superloop app, which runs a health check on the service and resolves many common faults without a support call. 

• Check your cabling. A damaged ethernet cable, or a port limited to 100 Mbps, can quietly cap your connection and introduce packet loss. Swap in a known-good Cat 6 cable to rule it out. 

Step 3: check your connection type 

Your nbn access technology is the biggest structural factor in gaming latency you do not directly control, and on some connections it is the real reason your ping spikes at night. FTTP and HFC hold latency steady under load. FTTN runs the final leg over copper, which degrades as more of your suburb comes online in the evening.

Sources: ACCC's June 2024 Measuring Broadband Australia report. Packet loss rounded to two decimal places. 

If you are on FTTN and your peak-hour ping is consistently high, the single most effective fix is upgrading to FTTP. Under the nbn Fibre Connect program many premises can now switch to full fibre at no installation cost if eligible, and Superloop will check your address and arrange it. FTTP also removes the copper bottleneck behind jitter and packet loss, the two things that hurt competitive play more than raw ping. Check your connection type and upgrade eligibility for your address before deciding whether this step applies to you. 

Step 4: diagnose peak-hour congestion and ISP routing 

If your ping is fine in the morning but spikes every evening, the problem is upstream of your house: either peak-hour congestion or the path your ISP takes to the game server. This is the level you cannot fix with settings, only with a capable network behind you. 

• Congestion looks like this: ping climbs after 7 pm, recovers late at night, and tracks with how busy the network is. It happens when an ISP has not provisioned enough capacity for evening demand. 

• Routing looks like this: consistently higher ping to specific game servers regardless of the time of day, because traffic takes an inefficient path with too many hops. 

• Rule out a line fault first. Superloop customers should run Refreshify in the app, and lodge a fault there if the diagnostic flags one. 

Compare your evening performance against what a well-run network delivers. The same ACCC program measured Superloop at 91.0% upload delivery during busy hours and 101.6% download across all hours (ACCC Measuring Broadband Australia, Report 33, June 2026, data collected March 2026). Superloop was also awarded fastest fixed network in Australia by Ookla for the full year 2025 and H1 2026.* 

* Based on Ookla® Speedtest Intelligence® data for 1H 2025, 2H 2025 and 1H 2026. All rights reserved. Speed testing method is different to ACCC’s ‘Measuring Broadband Australia’ program. 

The reason a network holds up at peak comes down to infrastructure. Superloop connects directly to all 121 nbn points of interconnect and runs >100,000 fibre route km across international networks (owned, IRU and leased fibre), which gives it end-to-end control over routing and capacity instead of relying on third-party backhaul. If you have worked through Steps 1 to 3 and your evenings are still unplayable, your ISP is the limiting factor, and that is the point at which switching provider is worth considering.

Step 5: sort out overseas server lag and hosting needs 

If your lag only appears on overseas servers, distance is the cause. No setting on your end removes the physical kilometres, but your ISP's international routing decides how much of that distance actually costs you: . 

• Pick local servers where the game offers them. AU and Oceania regions (Sydney, Melbourne) will always beat a server in Singapore, Japan, Korea or US West Coast on raw distance. 

• For titles that only host overseas, routing is what matters. Superloop owns subsea fibre cables connecting Australia to Asia and the United States, giving its customers a more direct, lower-latency path to those servers than ISPs that hand international traffic to a third party. That subsea fibre was cited as a specific gaming advantage when Superloop was named Best nbn Provider for Gaming in the TechRadar 2026 Australian PC Awards. 

Hosting a server or forwarding ports 

Hosting is a separate question from lag. Superloop uses CG-NAT across all nbn services, where the public IP address is shared with other customers, and for most gamers this makes no practical difference. If you have specific gaming needs such as hosting a game server, advanced port configuration, or a preference for a dedicated IP address, you can contact Superloop to discuss your options, or a static IP is available for $5 per month and can be added or removed at any time. 

Lag troubleshooting summary 

Match your symptom to its likely cause and fix. This table is the fastest way to jump to the right step above. 

Source for latency and delivery figures: ACCC Measuring Broadband Australia, Report 33, June 2026, data collected March 2026. 

Alongside its gaming-specific results, Superloop holds Finder's nbn Provider of the Year 2026 and the WhistleOut 2026 Internet Customer Satisfaction - Internet Speed. Last year, Superloop was the winner of the WhistleOut Internet Customer Satisfaction Award 2025 so if your current provider turns out to be the bottleneck, the independent data points to a clear alternative. 

Next step 

Still lagging after all five steps? Run a full line diagnostic with Refreshify in the Superloop app, or check whether your address is eligible for an FTTP upgrade and a gaming-ready nbn plan.