How to Share Internet Across a Big Household | MATE

Family & Internet Blog | MATE | 14 October 2026

How to share internet across a big household without slowing everyone down

It’s 6pm. Someone’s on a work call, the kids are gaming, the footy is streaming in the lounge room and a phone is quietly backing up 400 photos. Then the internet drops out, and somehow it’s your fault.

Sound familiar? Sharing internet across a big household can feel like a nightly tug of war. The good news is that the fix is usually cheaper than you’d think, and often it isn’t your nbn plan at all. Here’s how to work out what’s really slowing things down, and what to change first.

Why a Busy Household Feels Slow (and Why It’s Usually Not Your Plan)

When everyone’s home and online, three things tend to get in the way.

1. Too many devices fighting over the same WiFi

Your router shares its WiFi airtime between every connected device. The more phones, tablets, TVs, consoles and smart gadgets you add, the less each one gets, even if your plan has plenty of speed to go around.

2. Upload fills up first

Video calls, cloud photo backups and security cameras all send data out of your home. Most plans give you far less upload than download, so it’s often the first thing to max out.

3. The WiFi, not the nbn line

The nbn itself is generally holding up well. In its final Measuring Broadband Australia report in June 2026, the ACCC found fixed-line nbn services were delivering 99.4% of their plan’s download speed in the busy evening hours. So if your internet crawls when everyone gets home, the bottleneck is most likely inside your house: an older router, a poorly placed modem, or too many devices crowded onto one WiFi band.

Evening slowdowns can have other causes too, and we cover those in our guide to why your nbn slows down at night.

How Much Speed Does a Big Household Actually Need?

It’s tempting to pick a plan based on how many people live with you. What really matters is how much is happening at the same time. Think about the busiest moment in your house, usually weeknight evenings, and count what’s running at once:

• How many people are streaming, and is it in HD or 4K?
• How many video calls could be happening?
• Is anyone gaming online or downloading big game updates?
• Are phones, laptops or cameras backing up to the cloud?

Here’s how that maps to MATE’s speed tiers, using our typical evening speeds:

• nbn 50/20 (Ripper, 49Mbps): fine for a smaller household with a couple of HD streams and general browsing. For a big household, it’s often tight.
• nbn 100/20 (No Worries, 97Mbps): comfortable for two 4K streams, a video call and online gaming at the same time. A good fit for many families of four or five.
• nbn 100/40 (You Beaut, 97Mbps down / 36Mbps up): the same download with almost double the upload. Worth it if people work from home or back up lots of photos.
• nbn 500/50 (485Mbps): for busy households with several people working from home, heavy cloud backups or big console downloads. Available on FTTP and HFC.
• nbn 750, 1000 and 2000: for very large households or heavy uploaders. Most families won’t notice much difference between nbn 500 and nbn 1000 day to day.

Honest take: if your household runs smoothly most of the time and only struggles at the busiest moment, a better router may help more than a faster plan. Read the WiFi section below before you upgrade. For a full breakdown of every tier, see our guide to nbn speed tiers.

Upload Speed Is the One People Forget

Most people choose a plan on download speed, but in a big household, upload is often what runs out first. You’re using upload every time someone:

• jumps on a Teams or Zoom call with their camera on
• backs up photos and videos to iCloud or Google Photos
• has security cameras recording to the cloud
• uploads videos or streams their gaming online

On many plans, upload is a small fraction of download. nbn 100/20 gives you around 20Mbps of upload, shared by everyone in the house. One phone backing up a holiday’s worth of photos can be enough to freeze someone else’s video call.

That’s where plans with more upload earn their place: nbn 100/40 (up to 40Mbps), nbn 500/50 (up to 50Mbps) and nbn 1000/100 (up to 100Mbps). If calls drop out whenever someone else is uploading, upload is your bottleneck.

Fix Your WiFi Before You Upgrade Your Plan

Put your router in the right spot

Your router works best central in the home, up high and out in the open. Keep it away from things that interfere with WiFi, like microwaves, fish tanks, mirrors and baby monitors. A router hidden in a cupboard at one end of the house will always struggle.

Use the right WiFi band

• 2.4GHz: longest range but slowest and most crowded. Good for smart plugs, lights and cameras.
• 5GHz: faster, with shorter range. Best for phones, laptops and TVs near the router.
• 6GHz: the newest band (WiFi 6E and WiFi 7). Fastest and least crowded, but the shortest range, and only newer devices can use it.

Is an old router holding you back?

A router from 2018 was built for the plans of 2018. Older routers may not support newer WiFi standards, can struggle with lots of devices, and may not deliver the full speed of a faster plan over WiFi. If you’re moving to fibre or a faster tier, our guide on whether you need a new modem when you upgrade to fibre explains what to look for.

MATE’s pre-configured modems are the TP-Link HB210 Pro (WiFi 7, mesh-capable) for FTTP, HFC, FTTC and Fixed Wireless, and the TP-Link VX230v (WiFi 6) for FTTN and FTTB. Our setup guides walk you through getting connected.

When mesh WiFi is worth it

If one room is slow, moving your router usually fixes it. If you’ve got a double-storey home, thick brick walls or dead spots in several rooms, mesh WiFi is the answer. It uses several units working together as one network to spread the signal. Remember, a faster plan won’t reach any further than your WiFi does.

Wire in the TV and console

The TV and gaming console are often the biggest data users in the house, and they don’t move. Plug them into your router with an Ethernet cable and you’ll free up WiFi for everyone else. If you use mesh, connecting the units to each other by cable (called wired backhaul) can help too.

Share the Connection Fairly

Prioritise what matters with QoS

Quality of Service (QoS) lets your router give priority to certain devices or activities, like video calls or a work laptop. Look in your router’s app or settings for QoS, Prioritisation or Traffic Control, and set your work devices to high priority. It’s often more effective than jumping up a speed tier.

Schedule the big downloads

Game updates and cloud backups don’t need to happen at 7pm. Most consoles, computers and phones let you schedule updates overnight, or only back up while charging.

Set up a guest network

Put visitors and smart home gadgets on a separate guest network. It keeps your main network tidier and more secure, and you never have to hand out your main password.

Use parental controls and schedules

Most modern routers let you pause devices, set bedtimes for the kids’ devices and filter content. You don’t need a separate WiFi network for the kids, but grouping their devices makes these controls much easier to manage.

Share Houses vs Families: A Different Problem

Families mostly argue about speed. Share houses also have to sort out who pays and who’s responsible when people move on.

• Whose name is on the account? Usually one person holds the account and everyone else chips in. That’s the simplest setup, but it puts the responsibility on one person.
• Avoid lock-in contracts. Housemates come and go, and no one should be stuck with a 24-month contract in their name. MATE has no lock-in contracts and no plan change fees, so the account holder isn’t stuck if the household changes.
• Bring your own modem. If someone already has a compatible modem, you can use it with MATE. FTTN and FTTB need a VDSL modem, while FTTP, HFC and FTTC need a router with a WAN port.
• Agree on the split up front. Decide how the bill is shared before you sign up, and keep track in a shared note or app.

For families, bundling your nbn with MATE mobile plans can bring the monthly cost down too.

When to Actually Upgrade Your Plan

Once your WiFi is sorted, it’s time to look at your plan if:

• a wired speed test is close to your plan’s speed, but the household still runs out of room at busy times
• video calls drop whenever someone else is uploading (look for more upload)
• you regularly have several 4K streams, calls and games running at once
• you’re on FTTP or HFC and still on nbn 50 or nbn 100

Hold off if your speed is fine near the router but poor in other rooms. That’s a WiFi problem, not a plan problem.

Ready to compare? All MATE nbn plans come with unlimited data, no lock-in contracts and 100% Aussie-based support. New to the nbn? Here’s how nbn internet works.