2.4 GHz

Meaning

2.4 GHz is a WiFi band that reaches farther and passes through walls more easily, but it is usually slower and more crowded than 5 GHz. Many household devices and neighbouring networks use it, and microwave ovens, cordless phones and baby monitors can cause interference. Smart plugs and some cameras often work only on this band. Use it when you are far from the router or behind several walls, and try the other band if a device struggles to connect. See also: 5 GHz, Router, and the guide WiFi Bands and Routers: 2.4 GHz, 5 GHz and Placement.