Wi-Fi router or mesh: Wi-Fi 6, 6E and 7, home coverage and when an extender is enough

First the problem, then the box

Slow or dropping Wi-Fi usually has one of three causes: an old router (Wi-Fi 4 or 5, often the one from the provider), a large or irregular space that one router cannot cover, or interference on the 2.4 GHz band in a densely populated building. The remedy follows the cause – a new router, a mesh system, or just an extender.

Wi-Fi 6, 6E and 7 in plain words

• Wi-Fi 6 (802.11ax) – today's standard. Compared with Wi-Fi 5 it handles many devices at once better (OFDMA), has lower latency and runs phones more frugally. For an ordinary household with a connection up to 1 Gb/s it is fully sufficient.
• Wi-Fi 6E – the same plus the 6 GHz band, which is still empty and free of interference. Only devices that support 6 GHz (newer laptops and phones) benefit; range in this band is shorter than at 5 GHz.
• Wi-Fi 7 (802.11be) – wider channels (320 MHz), joining several bands at once (Multi-Link Operation) and lower latency. Worth it for connections above 1 Gb/s, for transfers inside the network (NAS, backups) and as an investment for the years ahead. Wi-Fi 7 routers usually come with 2.5 Gb/s ports as well.

Older devices connect to any new router – the standards are backwards compatible, they just run at their own speed.

Speed on the box versus reality

A figure like "AX3000" or "BE9300" is the sum of the theoretical maxima of all bands; a single device never reaches it. In practice a Wi-Fi 6 laptop on 5 GHz within good range gets hundreds of Mb/s, Wi-Fi 7 on 6 GHz over 1 Gb/s. What matters is how many bands the router has (two or three) and which wired ports: for a connection above 1 Gb/s and for a NAS you need at least one 2.5 Gb/s port, otherwise the speed stops at the cable.

Router, mesh or extender

• One router is enough for a flat or a smaller house up to roughly 100 m² on one floor, if it stands in the middle rather than in a corner by the front door. Replacing an old router with a Wi-Fi 6 model is the cheapest improvement.
• A mesh system is two or three units forming one network with one name; devices move between them without a drop. The units talk to each other over a dedicated band (tri-band) or, better, over a cable (Ethernet backhaul) if the house is wired. For multi-storey houses, long flats and spaces with thick walls.
• An extender (repeater) picks up the signal and re-broadcasts it – simple and cheap, but half the throughput goes into repeating and a second network appears that devices switch to reluctantly. Good for one distant room or the garden, not as the backbone of a house.

Mesh units of one series can be bought gradually – start with two, add a third when a dead spot remains.

Placement matters more than price

The router belongs high up, central and away from metal objects (not behind the TV, not in a cupboard, not in the cellar). Every reinforced-concrete wall or floor removes most of the 5 GHz signal; that is why in a multi-storey house a mesh unit per floor beats one strong router. The 2.4 GHz band reaches further but is slower and the most crowded – leave it to smart-home devices and printers.

Cable wherever possible

A desktop PC, TV, console and NAS belong on a cable. Ethernet has stable latency and full speed regardless of the neighbours. If the router lacks ports, add a switch; for more than 1 Gb/s use a switch with 2.5 Gb/s ports and category 6 or better cables.

Buying from us

You filter Wi-Fi routers and mesh systems by standard, number of bands and port speed; extenders have their own shelf. Goods in stock ship within 1–2 working days, delivery is free from CZK 6,000 and a 24-month warranty applies. Send us a floor plan or a description of the house and your connection speed – we will advise whether a router is enough or a mesh is needed.