Key Takeaways

  • Wi-Fi channels are the frequencies that Wi-Fi routers use to transmit and receive signals. Different channels have different frequency ranges.
  • Overlapping Wi-Fi channels can cause interference and result in poor performance. Channels 1, 6, and 11 are the most frequently used channels for 2.4 GHz Wi-Fi and do not overlap with each other.
  • To improve your Wi-Fi signal, choose a less congested channel by using tools like NirSoft WifiInfoView for Windows, Wireless Diagnostics for Mac, the iwlist Command for Linux, or Wifi Analyzer for Android.