I put together a technical deep dive into IEEE 802.11 with the goal of explaining how Wi-Fi works at the protocol level rather than focusing on configuration or vendor-specific implementations. The guide covers management, control, and data frames, active vs. passive scanning, authentication and association, the 4-way handshake, PMKID, WPA2/WPA3, WPS, roaming, monitor mode, and how these pieces fit together during a typical wireless connection.