Even with a high‑speed internet plan, connecting to an unsuitable Wi‑Fi frequency can cripple performance. By Calvin Wankhede, Oct. 25, 2026, 6:00 p.m. EST
The average broadband speed in the United States has risen steadily for decades, but that does not guarantee that every gadget in your home runs at top speed. You may be paying for a service that delivers hundreds of megabits or even a gigabit per second, yet a poorly configured router can still cause sluggish downloads and buffering video on certain devices. Even a strong Wi‑Fi signal may not reveal the underlying issue. If this sounds familiar, it’s worth checking which Wi‑Fi band each device is using to talk to your router.
Most routers broadcast on the 2.4 GHz and 5 GHz bands, and newer models add a third 6 GHz band. Depending on how the network is set up, devices may hop between these frequencies automatically, which can lead to reduced real‑world speeds or unreliable connections. Fortunately, a single router setting can be adjusted to prevent this problem.
Each Wi‑Fi band has distinct advantages and disadvantages, so selecting the wrong one can hurt performance. The 2.4 GHz band dates back to the original Wi‑Fi standard introduced in 1997. Many smart‑home products still rely solely on this frequency. It also penetrates walls and other obstacles better than higher frequencies, making it ideal for extending range. The trade‑off is lower speed and greater susceptibility to interference from other devices.
The 5 GHz band has been around nearly as long but only became common in the 2010s. It can carry far more data, supporting gigabit‑class speeds and beyond. Its drawback is limited range; higher frequencies do not pass through walls as effectively, so devices need to stay relatively close to the router.
The newest Wi‑Fi 6E and Wi‑Fi 7 standards introduced a 6 GHz band, which pushes speed even higher while further reducing range. With that background, the most frequent cause of slow Wi‑Fi is a feature called band steering. This feature merges two or more frequencies under a single network name (SSID) and, in theory, lets routers and devices automatically choose the best band based on current conditions. In practice, many devices cling to the 2.4 GHz band even when a strong 5 GHz signal is available.
Disabling band steering lets you decide which frequencies each device uses. The process is simple if you can access your router’s admin panel. The address and login details are usually printed on a label on the back or underside of the router, often something like tplinkwifi.net or 192.168.0.1. Some routers also offer a companion smartphone app that can be used instead. Once logged in, go to the Wi‑Fi Settings or Wireless Settings section and look for an option named Band Steering, Auto‑Band Selection, Dynamic/Smart Connect, or similar. Turn the feature off and save the changes; you may need to reboot the router.
When band steering is disabled, most routers automatically create a second SSID, often with a “_5G” suffix to indicate the 5 GHz network. Routers that support 6 GHz may generate three separate networks. You can rename each SSID and set individual passwords in the advanced wireless settings. After applying the changes, reconnect each device to the network you prefer. For example, a weak 5 GHz signal from a few rooms away often yields faster real‑world speeds on a smartphone or laptop than a 2.4 GHz connection, while many smart‑home devices benefit from the longer range of 2.4 GHz because they do not require high throughput.
Some ISP‑provided routers do not allow band steering to be turned off. In that case, you can usually replace the ISP’s unit with your own router or access point to regain control.
Can you use both the 2.4 GHz and 5 GHz bands at the same time? While it might seem like a good way to maximize speed, most devices cannot communicate on multiple bands simultaneously. A new feature called Multi‑Link Operation (MLO), introduced with Wi‑Fi 7, aims to combine several bands to boost bandwidth or lower latency. Both the router and the client device must support MLO, which means you need a Wi‑Fi 7 router and an MLO‑capable gadget. Even then, real‑world results vary, and early Wi‑Fi 7 hardware often delivered mixed performance because many devices were released before MLO was fully standardized.
After configuring your router and devices, check whether your network suffers from channel congestion. Each Wi‑Fi band is divided into smaller frequency ranges called channels, similar to lanes on a highway. The 2.4 GHz band provides 14 channels, though only channels 1 through 11 are usable in North America.