Wi-Fi Routers

Most houses do not need mesh. They need one decent router, in a better place than the one it is in. That is a less exciting recommendation than a three-pack of anything, and it is right more often — a well-placed modern router covers roughly 1,500 to 2,000 square feet of a single floor usefully, which is a great many homes.

What a router actually determines

Your router sets the ceiling for everything that happens inside the house. It decides how fast a device standing next to it can go, how many devices can be busy at once without stalling, whether your internet plan can be delivered at all, and what control you have over the network. What it does not determine is how far the signal travels, and that distinction is the single most useful thing on this page.

Range has not meaningfully improved across recent Wi-Fi generations. Transmit power is legally capped, so a flagship router is not louder than a budget one — it is better at encoding, not at shouting. And the link is two-way: your phone has a small antenna and a battery to protect, so it transmits far more weakly than the router does, and that return path is usually what actually fails. Buying an expensive router to reach a back bedroom is the most common expensive mistake in this category.

When one router is the right answer

• Your current one predates Wi-Fi 6 and your plan is faster than about 300 Mbps. This is the most common genuine case. A Wi-Fi 5 router or an older ISP gateway typically delivers well under half a gigabit however good your line is.
• Speeds are poor standing right beside the router. That is a capacity problem, not a coverage problem, and a new router fixes it directly.
• You are renting a gateway. Better hardware, freedom to place it sensibly, and often the end of a monthly fee. The arithmetic is on the provider pages.
• The house is under about 2,000 square feet on one floor, or 2,500 across two. One radio, well placed, genuinely covers it.
• Your plan is multi-gig. You need a WAN port faster than a gigabit, or the router caps you at about 940 Mbps no matter what you pay.

What to look for, in order

Why expandability is at the top of that list

Because it is the cheapest insurance available. If you buy a router with AiMesh or EasyMesh support and later discover the house needs a second radio, you add a node to the system you already own. If you buy one without it, you replace it. The feature costs nothing extra on most models and it removes the worst outcome — buying twice.

What a router cannot fix

A dead zone. Range is a physics limit, not a product one. You need a radio closer to the room — start here. Congestion. A faster radio on the same crowded channel changes nothing; the exception is a router with a 6 GHz band, which helps by moving you to quieter spectrum rather than by being faster — interference. A slow line. If a wired laptop at the router is well below your plan, the modem or the provider is the problem. An old device. A laptop with a Wi-Fi 5 card cannot go faster than Wi-Fi 5, whatever you plug into the wall.

Routers and modems are different jobs

Worth separating, because it decides which box to buy. A modem connects the house to your provider; a router shares that connection and provides Wi-Fi. A gateway is both in one box, and the trouble with a gateway is that it has to live where the line enters the building — which is usually a corner, a garage or a utility closet, and a poor place for a radio. Separates let the modem stay put while the router goes somewhere sensible. Router vs modem vs gateway explains it, and the modem page covers what to buy on cable. Two pages here answer the questions people arrive with most often: the best Wi-Fi 7 routers under $200 separates real Wi-Fi 7 from the badge, and do you need a new router for fiber will often save you the purchase entirely. On cable, the box worth replacing first is usually the rented one: best cable modems for Xfinity picks one per speed tier and shows the approval step to do before ordering.