Wi-Fi routers can use two different frequency bands: 2.4 GHz and 5 GHz. But what are the differences between them, and how do they affect your internet speed, range, and reliability? In this video, I will explain the pros and cons of each band, and how to choose the best one for your needs. I will also show you how to check and change your Wi-Fi settings on your router and devices, and how to optimize your Wi-Fi performance and security.