Popular Science has some advice for speeding up your Wifi.
1. Download firmware from your router manufacturerâ€™s website. Software updates fix bugs and may also include performance upgrades, as well as extra support for newer devices on the market.
2. Most routers use channel 6 by default. Change this to 1 or 11 (to minimize interference with channel 6), and you might notice an uptick in Wi-Fi performance. All of your connected devices will also have to adjust their channels, but the majority of your gear will do this automatically, with no need to adjust the Wi-Fi name or password.