Choosing the Right Router for Fibre Broadband

Start with your broadband speed

Before you spend a penny on a new router, check the speed you're actually paying for. Fibre broadband comes in many flavours, from entry-level FTTC (fibre to the cabinet) at around 36 Mbps to full-fibre FTTP (fibre to the premises) at 900 Mbps or more. Your router must be able to handle that throughput. A router with only 100 Mbps Ethernet ports will strangle a 500 Mbps connection, no matter how fancy its Wi-Fi looks.

Look at the WAN (wide area network) port and the LAN (local area network) ports. For any fibre package above 100 Mbps, you want gigabit Ethernet on both. If you're on a 900 Mbps plan, check for 2.5 Gbps ports – they're increasingly common and give you headroom. Also, don't ignore the router's processor and memory. Cheaper models can buckle under heavy load, especially when many devices are streaming or gaming at once.

• Up to 100 Mbps: a basic dual-band router with 100 Mbps ports is usually fine.
• 100–500 Mbps: insist on gigabit ports and a dual-core or better CPU.
• 500 Mbps and above: look for gigabit or 2.5 Gbps ports, plus Wi-Fi 6 or better.

Match the router to your home's size and layout

Wi-Fi signal doesn't care about your floor plan, but walls, floors, and even large mirrors do. A single router placed in a hallway cupboard will struggle to reach a bedroom at the back of the house. As a rule of thumb, a single router can cover a small flat or a two-bedroom home up to about 80 square metres. Beyond that, you'll likely see dead spots.

For larger homes – say 80 to 150 square metres – a mesh system or a powerful router with external antennas is a better bet. Mesh nodes talk to each other to create a seamless network, so you can walk from room to room without dropping a video call. If your home is over 150 square metres or has thick stone walls, plan for three mesh nodes or a router plus a wired access point.

Placement matters as much as hardware. Put your router high up, central, and away from metal objects, fish tanks, and microwaves. If you can run an Ethernet cable from your broadband entry point to a better spot, do it. Wired backhaul between mesh nodes is the gold standard for stability.

Count your devices – and think ahead

How many things connect to your Wi-Fi right now? Phones, laptops, tablets, smart TVs, games consoles, smart speakers, doorbells, thermostats, and even washing machines. A typical family home might have 20 to 30 devices. A busy household with smart home gadgets can easily hit 50.

Every device shares the same airwaves. Older routers with a single 2.4 GHz band can get overwhelmed, leading to buffering and lag. That's why device count should drive your choice. For up to 15 devices, a good dual-band router is fine. For 15 to 30 devices, look for dual-band with MU-MIMO (multi-user, multiple input, multiple output) or step up to tri-band. For 30+ devices, tri-band is not a luxury – it's a necessity.

• 1–15 devices: dual-band Wi-Fi 5 or Wi-Fi 6 router.
• 15–30 devices: dual-band Wi-Fi 6 with MU-MIMO, or tri-band Wi-Fi 5.
• 30+ devices: tri-band Wi-Fi 6 or Wi-Fi 6E, with a strong CPU.

Dual-band, tri-band, and Wi-Fi generations explained

Dual-band routers offer 2.4 GHz and 5 GHz. The 2.4 GHz band travels further but is slower and crowded – think of it as a narrow country lane. The 5 GHz band is faster but has shorter range – a motorway with more lanes. Tri-band adds a second 5 GHz band (or a 6 GHz band on Wi-Fi 6E), effectively giving you an extra motorway. That reduces congestion when multiple devices are hammering the network.

Wi-Fi generations matter too. Wi-Fi 5 (802.11ac) is still common and perfectly adequate for many homes. Wi-Fi 6 (802.11ax) handles dense device environments better, with improved efficiency and battery life for connected gadgets. Wi-Fi 6E adds the 6 GHz band, which is clean and fast but has shorter range. Wi-Fi 7 (802.11be) is the newest, offering even higher speeds and lower latency, but you'll only benefit if your devices support it.

Don't be swayed by big numbers on the box. A tri-band Wi-Fi 5 router can outperform a cheap dual-band Wi-Fi 6 model in a busy home. Focus on real-world throughput and device handling, not marketing claims.

Features that make a practical difference

Beyond the basics, a few features are worth paying for. MU-MIMO lets the router talk to multiple devices at once instead of taking turns. Beamforming directs the Wi-Fi signal towards your devices rather than spraying it everywhere. Quality of Service (QoS) lets you prioritise video calls or gaming traffic over background downloads.

If you work from home or game online, look for a router with a good QoS engine and maybe even a dedicated gaming port. Parental controls and guest networks are handy for managing family access. And don't forget firmware updates – a router that receives regular security patches is worth more than one with slightly faster specs but no support.

Finally, consider whether you need a modem/router combo or just a router. If your fibre connection comes via a separate ONT (optical network terminal) or modem, you only need a router. If you're on FTTC, you may need a VDSL modem built in. Check before you buy – returning the wrong box is a hassle nobody needs.