How to Choose the Right Modem and Router in Canada

Does Your Modem and Router Actually Matter?

You've signed up for a fast internet plan, but pages still load slowly, video calls freeze, and the WiFi drops in the bedroom. Before you blame your provider, the problem might be sitting on a shelf in your basement: an outdated modem, a router that can't keep up, or both.

Your modem and router are the two pieces of equipment that sit between your internet connection and every device in your home. Choosing the right ones — and knowing the difference — can mean the gap between "this internet is terrible" and "this internet is great," even on the exact same plan.

Modem vs. Router: What Each One Does

These two devices do very different jobs, and many people confuse them — especially since some providers bundle them into a single box.

The modem

Your modem connects your home to your internet service provider's network. It translates the signal coming over the cable line or fibre connection into data your home network can use. Without a modem, you have no internet — period.

Modems are technology-specific:

• Cable modems connect to coaxial cable lines (the same cable that used to carry TV signals). They use the DOCSIS standard — more on that below.
• Fibre ONTs (optical network terminals) convert light signals from fibre optic lines into Ethernet data. These are usually provided by your ISP and installed when your fibre service is set up.
• DSL modems connect to telephone lines. These are increasingly rare in Western Canada as fibre and cable have expanded.

The router

Your router takes the single internet connection from your modem and shares it with all your devices — phones, laptops, smart TVs, thermostats, and everything else. It manages your WiFi network, assigns IP addresses, and directs traffic so your video call doesn't compete with your kid's gaming session (at least in theory).

The router is what creates your WiFi network. If your WiFi is slow, drops out, or doesn't reach certain rooms, the router is usually the first place to look.

Combo units (gateway devices)

Many ISPs provide a single box that combines a modem and router in one unit. These are convenient — one device, one power cord — but they're often not the best at either job. The built-in router in a combo unit typically has weaker WiFi range and fewer features than a standalone router. If you're in a larger home or have many devices, separating the two usually gives better results.

Choosing a Modem: What Specs Matter

If you're on a cable internet plan, your modem's capabilities put a hard ceiling on your speed. Here's what to check:

DOCSIS version

DOCSIS (Data Over Cable Service Interface Specification) is the standard that cable modems use. The version determines your maximum possible speed:

• DOCSIS 3.0 — supports speeds up to about 1 Gbps download in theory, but real-world performance tops out around 300–600 Mbps depending on the number of channels. Still adequate for plans up to 300 Mbps.
• DOCSIS 3.1 — supports speeds up to 10 Gbps download and 1–2 Gbps upload. Required for any cable plan above 500 Mbps. If you're on a gigabit plan with a DOCSIS 3.0 modem, you're leaving speed on the table.

If you're not sure what version your modem supports, check the label on the bottom or look up the model number. Upgrading from 3.0 to 3.1 is one of the cheapest, most impactful upgrades you can make.

Channel count

Cable modems bond multiple channels together to increase throughput. A modem might be listed as "32×8" (32 downstream, 8 upstream channels) or "24×8." More channels generally mean more consistent speeds, especially during peak hours when your neighbourhood is online simultaneously.

For plans up to 300 Mbps, a 16×4 or 24×8 modem is fine. For plans 500 Mbps and above, look for 32×8 (DOCSIS 3.0) or an OFDM-capable DOCSIS 3.1 modem.

ISP compatibility

Not every modem works with every provider. Cable ISPs maintain a list of approved or compatible modems. Before buying your own, check with your provider to confirm the model is supported on their network. Using an unsupported modem can result in connection issues or slower speeds even if the specs look right.

If you're on fibre

Fibre connections use an ONT provided by your ISP — you typically don't choose or buy this yourself. The ONT connects to your router via Ethernet. Your job is choosing a good router, not a modem. If you're weighing whether fibre or cable is right for your home, we've covered the differences in detail.

Choosing a Router: What Actually Matters

This is where most people can make the biggest impact on their daily internet experience. A good router makes your fast plan feel fast. A bad one makes it feel broken.

WiFi standard (WiFi 5, WiFi 6, WiFi 6E, WiFi 7)

WiFi standards determine the theoretical maximum speed and how well the router handles many devices at once:

• WiFi 5 (802.11ac) — still works, but starting to show its age. Max theoretical speed around 3.5 Gbps (shared across all devices). Adequate for plans under 300 Mbps with fewer than 15 devices.
• WiFi 6 (802.11ax) — the current sweet spot. Better at handling many devices simultaneously thanks to technologies like OFDMA and MU-MIMO. Significantly better in congested environments like apartment buildings.
• WiFi 6E — adds the 6 GHz band, which is less congested and great for high-demand devices. Best for homes with 30+ connected devices or where WiFi congestion from neighbours is an issue.
• WiFi 7 (802.11be) — the newest standard, now appearing in premium routers. Offers even higher speeds and lower latency. Not necessary for most homes today, but worth considering if you're future-proofing.

For a deeper dive into which standard you actually need, see our WiFi 6, 6E, and 7 comparison guide.

Band configuration: dual-band vs. tri-band

Dual-band routers broadcast on 2.4 GHz (longer range, slower speed) and 5 GHz (shorter range, faster speed). This covers the vast majority of homes.

Tri-band routers add a second 5 GHz band or a 6 GHz band. The extra band is most useful when you have many high-demand devices competing for bandwidth — multiple 4K streams, VR headsets, or a home office with constant video calls. For a household of four with typical use, dual-band WiFi 6 is usually enough.

Coverage area

Every router has a practical coverage range. A single router might cover 1,200–2,500 square feet depending on construction, walls, and interference. If your home is larger or has thick walls, concrete floors, or an unusual layout, a single router may not cut it.

This is where mesh WiFi systems come in — multiple units that work together to blanket your home in a single, seamless network. If you've got dead zones, our mesh WiFi and dead zone guide walks through the options.

Ethernet ports

Even in a wireless world, wired connections matter. Desktop computers, gaming consoles, smart TVs, and home offices all benefit from the stability of a direct Ethernet connection. Look for a router with at least four gigabit Ethernet ports. If you need more, a network switch (an inexpensive add-on) can expand the number of wired connections.

Processor and RAM

Your router is a small computer. A faster processor and more RAM help it manage many simultaneous connections without slowing down. This matters most in busy households with 20+ devices. Specs aren't always easy to compare, but as a rule: dual-core or quad-core processors and 512 MB+ of RAM handle modern home networks well.

Security features

Make sure any router you consider supports WPA3, the latest WiFi security standard. WPA3 makes it significantly harder for unauthorized users to crack your password or intercept your traffic. If a router still lists WPA2 as its highest standard, it's showing its age. Our home WiFi security guide covers what else to lock down.

Should You Buy Your Own or Use Your Provider's Equipment?

There are trade-offs either way:

Provider-supplied equipment

• Pros: guaranteed compatibility, tech support covers it, often included in your plan or available for a small monthly fee, automatic firmware updates.
• Cons: may not be the highest-performing option, monthly rental fees add up over time, less control over settings and features.

Your own equipment

• Pros: choose exactly the features and performance level you want, no ongoing rental fees, more customization options.
• Cons: upfront cost ($100–400+ depending on what you buy), you're responsible for setup and troubleshooting, need to confirm ISP compatibility, firmware updates are on you.

A middle path that works well: use your provider's modem (especially for fibre, where you have no choice) and pair it with your own high-quality router. This gives you the best WiFi experience while keeping the ISP-supported modem for the connection itself.

How to Match Equipment to Your Internet Plan

There's no point buying a WiFi 7 mesh system if you're on a 50 Mbps plan — and no point subscribing to gigabit internet if your router caps out at 300 Mbps. Here's a rough matching guide:

Internet Plan Speed	Modem Minimum	Router Recommendation
Up to 150 Mbps	DOCSIS 3.0 (16×4)	WiFi 5 dual-band or better
150–500 Mbps	DOCSIS 3.0 (32×8)	WiFi 6 dual-band
500 Mbps – 1 Gbps	DOCSIS 3.1	WiFi 6 dual-band or tri-band
1 Gbps+	DOCSIS 3.1 / Fibre ONT	WiFi 6E or WiFi 7, tri-band

Not sure what speed you actually need? Our speed recommendation guide breaks it down by household size and usage habits.

Signs It's Time to Replace Your Modem or Router

Equipment doesn't last forever. Here are the tell-tale signs yours needs replacing:

• Your modem is more than 5 years old — technology moves fast. A modem from 2020 may not support the speeds your current plan offers.
• Your router only supports WiFi 4 or 5 — with 20+ devices in a modern home, older WiFi standards can't keep up.
• You're rebooting it weekly — occasional reboots are normal, but if it's a regular ritual, the hardware is likely failing.
• Dead zones have appeared — routers lose range over time as components degrade. If areas that used to have signal now don't, it may be the hardware, not your walls.
• You've upgraded your plan but speeds haven't improved — your equipment is the bottleneck. Check whether your modem and router specs match your plan tier.

If you're not sure whether the issue is your equipment or something else entirely, run through our slow internet troubleshooting guide first.

Placement Still Matters More Than Most People Think

Even the best router performs poorly if it's buried in a basement closet behind a metal shelf. Before spending money on new equipment, make sure your current router is in the best possible location: central, elevated, away from metal objects and appliances that cause interference. Our router placement guide covers this in detail — it's the free fix that makes the biggest difference.

Common Questions About Modems and Routers

Do I need both a modem and a router?

If you're on cable or DSL, yes — one to connect to the ISP's network (modem) and one to share that connection with your devices (router). On fibre, your ISP provides the ONT (modem equivalent) and you need a router to create your WiFi network. Combo units handle both jobs in one device.

Will buying a better router make my internet faster?

A better router won't increase the speed of your internet plan, but it will help you actually receive the full speed you're paying for — especially over WiFi. If your router is the bottleneck, upgrading can make a dramatic difference.

How often should I replace my router?

Every 4–5 years is a reasonable cycle for most households. WiFi standards advance, security improves, and hardware wears out. If your router is still running WiFi 5 and you have a fast plan with many devices, upgrading to WiFi 6 is worth the cost.

Can I use any modem with any internet provider?

No. Cable ISPs require DOCSIS-compatible modems from their approved list. Fibre ISPs provide their own ONT. Always confirm compatibility with your provider before purchasing a modem. Your provider's website or support line will have a list of compatible models.

Looking for a plan that comes with solid equipment and reliable coverage? Check out Get WiFi's current internet plans — our packages include quality modem and router setups designed for Western Canadian homes.