Stop settling for buffering and dead zones. Here’s everything you need to know to maximise your home WiFi speed — from router placement basics to full mesh network upgrades.
Slow home WiFi is one of the most frustrating tech problems — especially when you’re working from home, streaming in 4K, or trying to game online. The good news is that most speed issues are fixable without buying a new modem or upgrading your NBN plan. This guide walks you through everything.
Step 1: Test Your Actual Speed First
Before touching any hardware, run a proper speed test. Visit our internet speed test guide and run the test at your router (wired if possible) and then at the spot where you actually use your devices. The gap between these two numbers tells you exactly where the problem lies.
If your wired speed matches your plan speed but wireless is much slower, the issue is your WiFi setup — not your NBN connection. If both are slow, you may have an NBN installation problem or need to look at switching your NBN plan.
| Household Use | Minimum Speed Needed | Recommended | NBN Tier |
|---|---|---|---|
| 1–2 people, light browsing | 25 Mbps | 50 Mbps | NBN 25 / 50 |
| Family, 4K streaming + WFH | 50 Mbps | 100 Mbps | NBN 100 |
| Heavy users, gaming, large uploads | 100 Mbps | 250–1000 Mbps | NBN 250 / 1000 |
| Home office with video calls + cloud | 50 Mbps + stable upload | 100–250 Mbps | NBN 100+ |
Router Placement: The Single Biggest Factor
Where you put your router has more impact on WiFi speed than almost any other factor. Most people leave it wherever the technician installed it — often near the front door or in a hallway, far from where the household actually lives.
Where to Place Your Router
- Central location in your home: WiFi radiates in all directions. A router at one end of the house means the other end gets weak signal. Place it as centrally as possible relative to where you use devices.
- Elevated — on a shelf or desk, not the floor: Floors absorb signal. Routers work best at mid-height (desk or shelf level), where signal travels horizontally through the living space.
- Away from concrete walls and metal objects: Thick concrete, brick, metal appliances (fridges, microwaves), and fish tanks all dramatically reduce signal strength. Keep your router away from the kitchen and laundry if possible.
- Away from interference sources: Microwaves, baby monitors, cordless phones, and Bluetooth speakers can all interfere with 2.4 GHz WiFi channels. Keep at least 1–2 metres of clearance where possible.
- Open space, not inside a cupboard or cabinet: A router stuffed in a TV cabinet or cupboard can lose 30–50% of its signal range through the walls of the enclosure alone.
Use the Right WiFi Band
Modern routers broadcast on two frequencies: 2.4 GHz and 5 GHz. Understanding the difference is key to getting the best performance from your existing hardware. Our guide on 5 GHz WiFi covers this in detail, but here’s the quick version.
2.4 GHz Band
Longer range, better at penetrating walls. Best for devices far from the router or in rooms with thick walls. Slower maximum speeds and more prone to interference from other devices and neighbouring networks.
5 GHz Band
Faster speeds, less interference. Best for devices close to the router — laptops, smart TVs, gaming consoles, and streaming sticks. Doesn’t travel as far or penetrate walls as well.
6 GHz Band (WiFi 6E)
The newest band on WiFi 6E routers. Extremely fast and almost interference-free, but very short range — best for devices in the same room as the router.
What to Connect Where
Connect phones, laptops, and TVs near the router to 5 GHz. Connect smart home devices, sensors, and far-away gadgets to 2.4 GHz. Check the differences between 5 GHz and 2.4 GHz for a deeper breakdown.
When Wired is Better Than Wireless
No matter how good your router or WiFi setup, a wired Ethernet connection will always be faster and more stable than wireless. For gaming PCs, smart TVs, desktop computers, and home office setups, running a cable to the device is the single best upgrade you can make.
Our comparison of WiFi vs Ethernet speeds shows real-world differences. If you’re serious about gaming or video conferencing, it’s worth the effort. For a professional installation of network cabling through your walls and ceiling, our network cabling service can tidy up the wiring and give you gigabit connections in every room.
Upgrade Your Router: What to Look For
If your router is more than 4–5 years old, it may simply not be capable of delivering modern speeds — even on a fast NBN plan. ISP-supplied modems are typically budget hardware designed to a cost, not for performance.
WiFi Standards: What the Numbers Mean
WiFi standards have improved dramatically in recent years. Here’s a quick guide to what each generation delivers in a real home environment:
| Standard | Also Called | Max Speed | Verdict |
|---|---|---|---|
| 802.11n | WiFi 4 | ~300 Mbps | Replace if possible |
| 802.11ac | WiFi 5 | ~1.3 Gbps | Acceptable for most homes |
| 802.11ax | WiFi 6 | ~9.6 Gbps | Recommended for new purchase |
| 802.11ax (6 GHz) | WiFi 6E | ~9.6 Gbps | Best for high-density homes |
| 802.11be | WiFi 7 | ~46 Gbps | Future-proof, premium cost |
If you’re buying new hardware, aim for WiFi 6 at minimum. For help choosing the right modem/router for your NBN connection type, see our guide on building a home network and our detailed look at upgrading your home network for 1 Gbps speeds.
Mesh WiFi: The Solution for Dead Zones
A single router — no matter how powerful — simply cannot cover every corner of a large home. If you have dead zones, thick walls, multiple floors, or a large floor plan, a mesh WiFi system is the answer.
Mesh systems use multiple nodes that communicate with each other to create a single seamless network across your entire home. Your devices automatically connect to the closest, strongest node without you doing anything. Our mesh WiFi setup service in Melbourne can plan and install a system tailored to your floor plan — making sure every room gets full-strength signal.
Mesh vs WiFi Extenders: Which is Better?
WiFi range extenders and repeaters are an older, cheaper solution to dead zones — but they have real downsides. They create a separate network with a different name, halve bandwidth when they relay traffic on a single band, and cause devices to “stick” to a weak signal instead of switching to the nearest strong node.
If your dead zones are mild and budget is a concern, see our guide on WiFi range extender installation. But if you want the best result, a mesh system is worth the investment. For professional installation and advice, our team covers home networking setup across Melbourne.
Fix Channel Congestion — Your Neighbours’ WiFi is Slowing You Down
In apartment buildings, terraces, and dense suburbs, dozens of WiFi networks compete for the same channels. This interference can dramatically reduce your speeds even with a good router and fast NBN plan.
How to Fix It
Log into your router’s admin panel (usually at 192.168.1.1 or 192.168.0.1) and change the WiFi channel manually. On the 2.4 GHz band, use channels 1, 6, or 11 (the only non-overlapping options). On the 5 GHz band, there are many more non-overlapping channels available.
Most modern routers can do this automatically with “auto channel” selection. If yours doesn’t, or if auto isn’t working well, a free app like WiFi Analyser (Android) lets you scan nearby networks and see which channels are least congested in your area. We cover this in more detail in our guide to fixing slow WiFi.
Make Sure Nobody is Leeching Your WiFi
An unsecured or weakly secured network can be used by neighbours or strangers, stealing your bandwidth and slowing your connection. Check our guide on who’s using your WiFi to see all connected devices and kick off anything you don’t recognise.
Your network should use WPA3 security (or WPA2 at minimum), with a strong, unique password. See our WiFi setup and security tips for a full checklist. If you suspect your network has been compromised, our team can help with a full WiFi setup and security audit.
NBN-Specific Issues Slowing You Down
If your speed problems persist after optimising your WiFi setup, the issue may be with your NBN connection itself rather than your wireless network.
Common NBN Speed Problems
Peak-hour slowdowns are the most common complaint — speeds that are fine at 10am but terrible at 8pm. This is a congestion issue on your ISP’s network, and the only fix is switching to a provider with better capacity, or upgrading to a higher-tier plan with a better speed guarantee.
If you’re having persistent issues, see our guides on NBN connected but no internet, NBN installation problems and fixes, and what to do when your computer can’t connect to WiFi. For a full setup with a new NBN connection, our NBN installation service in Melbourne covers the end-to-end setup.
Should You Switch to 5G Home Internet?
In some areas — particularly where NBN speeds are poor or installation is complex — 5G home internet can be a genuine alternative to fixed NBN, offering fast speeds without needing a technician visit. Our comparison of 5G vs NBN weighs up the pros and cons for Australian households.
10 Quick Wins to Speed Up Your WiFi Today
Restart Your Router
A full power cycle (unplug for 30 seconds) clears memory leaks and refreshes your connection to the NBN. Do this monthly as routine maintenance.
Update Router Firmware
Router manufacturers regularly release firmware updates that fix bugs and improve performance. Log into your router admin panel and check for updates.
Use 5 GHz for Close Devices
If your phone or laptop is within 10 metres of the router, switching from the 2.4 GHz to the 5 GHz network can double your effective speed.
Set Quality of Service (QoS)
Most modern routers have QoS settings that let you prioritise traffic for specific devices or applications — great for gaming or video calls.
Limit Background Apps
Windows Update, cloud backups, and streaming apps can silently consume bandwidth. Check what’s running in the background on your devices.
Change DNS Servers
Switching from your ISP’s default DNS to Cloudflare (1.1.1.1) or Google (8.8.8.8) can improve browsing speed and reliability noticeably.
Remove Old Devices
Every connected device shares your router’s processing capacity. Disconnect smart home devices, old phones, and anything you no longer use.
Check for Interference
Move your router away from the microwave, baby monitor, and cordless phone. These all broadcast in the 2.4 GHz range and cause interference.
Use a VPN Only When Needed
VPNs add encryption overhead that can reduce speeds by 10–30%. Only run a VPN when actually needed, not all the time on every device.
Call Your ISP
If speeds are consistently below your plan’s advertised rate, call your ISP and ask for a line test. You may be entitled to compensation or a free technician visit.
When to Call a Professional
Some WiFi problems have a DIY fix. Others don’t. If you’ve tried the steps above and still have persistent dead zones, slow speeds, or connection drops, it may be time to bring in a professional. A skilled network technician can:
- Survey your home and design a proper network layout
Using signal mapping tools to identify exactly where your coverage gaps are and recommend the best hardware and placement for your specific floor plan.
- Install structured cabling for wired backbone connections
Running Ethernet through walls to key locations (lounge room, home office, bedrooms) so you get wired-speed reliability everywhere. See our internet cabling service.
- Set up and configure a mesh network
Proper placement and configuration of mesh nodes, including backhaul settings, channel selection, and band steering — things that make a big difference but are hard to get right without experience.
- Troubleshoot your NBN connection
Testing signal levels, checking for line faults, and liaising with your ISP or NBN Co if there’s an infrastructure issue affecting your connection. Our guide on how to set up your NBN modem covers the basics.
Frequently Asked Questions
Why is my WiFi fast on my phone but slow on my laptop?
This usually means your laptop’s WiFi adapter is connecting on the slower 2.4 GHz band while your phone is on 5 GHz, or that your laptop’s WiFi drivers need updating. Check your network adapter settings and make sure you’re on the 5 GHz network. Our guide on 13 ways to increase internet speed has more targeted fixes.
How many devices can a home router handle?
Most consumer routers can theoretically support 30–50+ devices, but performance degrades significantly above 20–25 active connections. If you have a large smart home with many connected devices, a WiFi 6 router or mesh system handles concurrent connections much better than older hardware.
Does a WiFi extender slow down the internet?
Yes, traditional single-band repeaters effectively halve your bandwidth because they use the same radio to receive and retransmit data. A dual-band extender using a dedicated backhaul channel is much better, but a proper mesh system eliminates this problem entirely. See our range extender guide for the full comparison.
Why is my internet slow at night?
Peak-hour congestion (6pm–11pm) is the most common cause. This happens when too many users in your area are on the same ISP network segment. The solution is either switching ISPs, upgrading to a plan with a better evening speed guarantee, or in some cases switching to a less congested NBN technology type. Learn more in our guide on whether paying for faster internet is worth it.
Should I upgrade to NBN 100 or 250 for better WiFi?
Only if your current plan is actually the bottleneck. First confirm your WiFi issues aren’t caused by router placement, band congestion, or hardware limitations. If your wired speeds match your plan speed and you still need more, then upgrading makes sense. Check our guide to choosing the best WiFi plan for your home for Australia-specific advice.
