Your expensive new router might be running worse than your old one due to one hidden setting

Published Oct 5, 2026, 10:00 AM EDT After a 7-year corporate stint, Tanveer found his love for writing and tech too much to resist. An MBA in Marketing and the owner of a PC building business, he writes on PC hardware, technology, and Windows. When not scouring the web for ideas, he can be found building PCs, watching anime, or playing Smash Karts on his RTX 3080 (sigh). Most people, when faced with the limits of their Wi-Fi connection, default to buying a new and improved Wi-Fi router. If you're switching from a Wi-Fi 5 model, a Wi-Fi 6E or 7 router has potential improvements for your home network, provided your internet plan isn't the bottleneck. That said, a new router may not be the instant boost to your Wi-Fi that you expect. While not a universal trend, many newer routers are pre-configured to make use of the widest channels they support. This means 160 MHz and 320 MHz for Wi-Fi 6E and Wi-Fi 7 routers, respectively. Your speed tests might show great numbers on the widest channels, but your Wi-Fi may still feel worse than before. Upgrading to a Wi-Fi 6E or Wi-Fi 7 router might not go as expected Bandwidth can't compensate for physical constraints Moving from an outdated Wi-Fi 5 router to a Wi-Fi 6E or 7 router gives you access to modern features, such as the 6 GHz band for additional, less congested spectrum. It also opens up wider channels, such as 160 MHz on Wi-Fi 6E, and 320 MHz on Wi-Fi 7 routers. This promises a boost in the maximum theoretical bandwidth of your Wi-Fi connection, benefiting high-speed devices and workloads. Although 160 MHz-wide channels are also available on Wi-Fi 6 networks, they aren't as beneficial without the less congested 6 GHz band. 320 MHz channels are still rare in most geographies due to regulatory laws, but your Wi-Fi 6E or 7 router might have 160 MHz channel width enabled by default, ensuring you see flawless speed tests. The problem is that, even on the 6 GHz band, the high throughput of wider channels isn't without downsides. Your home Wi-Fi is still subject to the laws of physics. Interference and compromised range are issues you'll still have to contend with. With greater channel width comes increased congestion and reduced range It's the trade-off you need to keep in mind The primary downside of using 160 MHz wide channels pertains to the signal range. A doubling of channel width from, say, 80 MHz to 160 MHz, drops the signal-to-noise ratio (SNR) by 3dB. Closer to the router, this doesn't matter much, since you have plenty of signal strength to spare. As you move further from the router, however, this 3dB drop cuts your effective coverage area by around 30% to 50%, especially near the edges of your router's range. The greater the channel width, the lower your Wi-Fi signal's capacity to penetrate walls and other obstructions. This can make your new router's effective range worse than that of your older one, making the upgrade feel hollow. Then, there's the added congestion to deal with, since wider channels inevitably collide with your neighbors' Wi-Fi signals. Interference with surrounding networks is always present, but wider channels make it worse, increasing the latency of your network. The reduced range combined with the increased latency is a double whammy for any wireless connection. Lower channel width doesn't have to be a compromise It can actually benefit your Wi-Fi Fortunately, lowering your channel width to improve your Wi-Fi's responsiveness isn't some huge compromise. Going from 160 MHz to 80 MHz in your router's channel width settings won't suddenly make your connection "too slow." Most people aren't using gigabit or multi-gig internet plans where reducing the channel width starts to show actual speed differences. 300 Mbps is still the median broadband speed in the US, well below the maximum throughput of a Wi-Fi 6E router transmitting on an 80 MHz channel. Even on a gigabit Wi-Fi network, 80 MHz is better than 160 MHz for most of your wireless devices located away from the router. Only the ones in the same room can really benefit from maximizing the throughput on 160 MHz wide channels. To be honest, once you have a sufficiently fast connection to support all your wireless devices, lowering your channel width will actually make your Wi-Fi feel better, not worse. Most people never check their router's channel width Opening your router's admin page and inspecting the channel width being used isn't something the average user thinks about. Most people keep using their Wi-Fi at the default settings as long as everything is "working." Even when something breaks, they trust technical support to sort it out. However, optimizing your router settings, such as channel width, transmit power, QoS, and DNS servers, can deliver great returns.