If your home network feels sluggish or subpar despite having a relatively high-speed plan, jumping to an even faster plan might not be the solution. Your Wi-Fi experience isn't tied to a single metric; it's a product of several factors. The maximum bandwidth is just one part of the story. The range of your router, interference caused by internal and external devices, and the hardware capabilities of your devices also play their part.

That said, even if these things aren't creating roadblocks, your Wi-Fi can feel lacking, and that's where airtime issues enter the picture. Unless you've optimized your router's QoS settings, your airtime fairness configuration is probably not where it needs to be. This can create a situation where older and slower devices can essentially jam the network for faster ones, artificially ruining your Wi-Fi performance. Fixing your router settings doesn't take time, but it can restore your Wi-Fi performance to where it should have been all along.

Wi-Fi performance depends on more than just speed and range

It matters which devices you're sharing your airwaves with

Your Gigabit internet plan probably delivers 800–900 Mbps of bandwidth consistently, but that alone doesn't guarantee a snappy connection. Having an interference-free pathway from the router to your devices is also necessary. If you're using a Wi-Fi 6 router, you're limited to the 2.4GHz and 5GHz bands — no 6GHz band for high-speed, low-congestion airwaves. You might think you've taken care of both speed and range, but network latency can still arise out of other underlying problems. The smart devices across your home, ceaselessly broadcasting data, quietly make every other device on the same band wait in line.

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Quiz
8 Questions · Test Your Knowledge

Optimal Wi-Fi router and antenna position
Trivia challenge

Think you know where to put your router? Test your knowledge of Wi-Fi placement, signals, and antenna tricks.

PlacementAntennasSignalsInterferenceNetworking
01 / 8Placement

Where in your home is the best place to position a Wi-Fi router for maximum coverage?

Correct! A central and elevated position allows the router's signal to radiate outward more evenly in all directions. Keeping it away from thick walls reduces signal absorption, giving every room a more equal chance of strong coverage.
Not quite. The best spot is a central, elevated location away from walls. Corners and cabinets trap or block signals, while placing it near the TV often means the signal must travel farther to reach distant rooms.
02 / 8Antennas

If your router has two external antennas, what is the recommended orientation for the best mix of horizontal and vertical coverage?

Correct! Router antennas broadcast signal perpendicular to their own axis. By positioning one vertically and one horizontally, you create overlapping coverage planes, helping devices on multiple floors and in different orientations maintain a stronger connection.
Not quite. The answer is to position one antenna vertically and one horizontally. This ensures the signal radiates across both horizontal and vertical planes, which is especially helpful in multi-story homes or when devices are held at different angles.
03 / 8Interference

Which common household appliance is most notorious for interfering with 2.4 GHz Wi-Fi signals?

Correct! Microwave ovens operate at approximately 2.45 GHz, which directly overlaps with the 2.4 GHz Wi-Fi band. When in use, they can cause significant packet loss and slowdowns for nearby devices connected on that frequency.
Not quite. Microwave ovens are the biggest culprit, as they emit energy at roughly 2.45 GHz — almost identical to the 2.4 GHz Wi-Fi band. Placing your router far from the kitchen can help reduce this interference noticeably.
04 / 8Signals

Which building material causes the greatest reduction in Wi-Fi signal strength when a router signal must pass through it?

Correct! Concrete and brick are extremely dense materials that absorb and reflect radio waves, causing dramatic signal attenuation. A single concrete wall can reduce Wi-Fi range by 50% or more, making router placement even more critical in older or solid-wall constructions.
Not quite. Concrete and brick are by far the most signal-blocking common materials. Drywall and wood have relatively little impact, but a thick concrete wall can cut your Wi-Fi signal strength in half or worse.
05 / 8Placement

Why should you avoid placing a Wi-Fi router directly on the floor?

Correct! Wi-Fi radio waves radiate outward perpendicular to the antenna, meaning a floor-level router wastes much of its signal pushing energy into the ground. Elevating the router — even to a shelf or table — dramatically improves horizontal coverage across the room.
Not quite. The main reason is that Wi-Fi signals radiate sideways and are largely absorbed by floors and carpets when the router sits at ground level. Elevating it allows the signal to travel through open air rather than solid material.
06 / 8Networking

What is the primary advantage of placing a mesh Wi-Fi node in a hallway or open transitional space rather than inside a room?

Correct! A mesh node placed in a hallway or open transitional space can broadcast its signal into several adjacent rooms at once. This central position maximizes the node's coverage radius and avoids wasting signal strength on just one room's walls.
Not quite. Hallways and open transitional spaces are ideal because a node placed there can radiate signal into multiple surrounding rooms simultaneously. Tucking a mesh node inside a single room limits how far its coverage can effectively reach.
07 / 8Interference

Which of the following is the best practice to reduce co-channel interference between your router and your neighbors' Wi-Fi networks on the 2.4 GHz band?

Correct! The 2.4 GHz band has only three non-overlapping channels: 1, 6, and 11. Using any other channel means your signal bleeds into adjacent channels, creating interference with neighboring networks. Sticking to these three ensures the cleanest possible separation.
Not quite. Channels 1, 6, and 11 are the only non-overlapping options in the 2.4 GHz band. Any other channel will overlap with neighbors' networks, worsening interference rather than reducing it. Always choose one of these three when configuring manually.
08 / 8Antennas

What does a high-gain directional antenna on a router do compared to a standard omnidirectional antenna?

Correct! A directional antenna concentrates radio energy into a focused beam rather than spreading it in all directions. This sacrifices wide coverage for extended range in a targeted direction, making it ideal for point-to-point links or reaching a specific distant area like a garage or garden office.
Not quite. A directional antenna focuses signal in one direction to extend range there, rather than broadcasting equally all around. This makes it very useful for reaching a specific distant location, but it is not the right choice if you need broad whole-home coverage.
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These slower devices are often limited to older Wi-Fi standards, and can't leverage the modern features of your router. They create an unseen bottleneck that ruins the experience on high-priority devices, such as smartphones, PCs, laptops, and TVs. While your IoT devices hog the 2.4 GHz airwaves, everything connected to the same band suffers from latency, even though speed tests show nothing wrong. You can put everything on the 5GHz band to avoid interference entirely, but even that doesn't always end well. Unless you have a third band on your network, the best way to fix the problem is to check your router's settings.

You've probably never checked Airtime Fairness settings on your router

Better late than never

Hidden within your router's QoS settings is the Airtime Fairness section, which essentially determines the priority level assigned to different devices or traffic types on the network. The setting might be named something else, but most routers allow you to assign a custom priority to your high-bandwidth devices. The defaults usually give every device an equal opportunity to send data over the network, which naturally drags everything down to the speed of the slowest device connected to your Wi-Fi. Your Wi-Fi 4 and Wi-Fi 5 smart devices need to be slotted down on the priority scale if you want your high-speed devices to enjoy the throughput that you paid for. Most routers have the option to choose a manual priority list for various devices on the network, while others also support "Adaptive QoS," which dynamically ensures that the devices that need the best performance are prioritized on the network.

You might have to spend money if nothing else works

That's, unfortunately, the permanent fix

Although optimized airtime fairness settings should improve your Wi-Fi performance considerably, you might still struggle in cases where you simply have too many devices on the network. With enough devices vying for your router's attention, it can become impossible to avoid congestion entirely. The best way to get rid of it is to remove as many devices as you can from the 2.4GHz band, moving them to another, low-powered protocol like Zigbee. Alternatively, you can upgrade to a Wi-Fi 6E or Wi-Fi 7 router to access the 6GHz band for faster and nearly congestion-free performance. Either way, you'll have to spend money on your Wi-Fi network.

To delay your investment, you could use network segmentation by creating multiple 2.4GHz SSIDs, so that each one has fewer devices. These virtual networks can mitigate the whole issue until you finalize a permanent fix for the network. If your ISP is ready to upgrade your router, that might be the cheapest route to take.

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Hidden culprits are often your Wi-Fi's undoing

Airtime issues are common in most home Wi-Fi networks, where people never touch their router's settings after the ISP sets everything up. Your router's settings can resolve many of the most annoying Wi-Fi problems on your home network. It's just a matter of choosing the right channel and width, disabling band steering, and updating the firmware, among others.

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