If you’ve ever worked with a headless Raspberry Pi, you’ve probably faced this problem: The Raspberry Pi was previously connected to a Wi-Fi network You do not know which network it is connected to You cannot connect a monitor, keyboard, or mouse SSH is your only option The Pi is no longer appearing on your current network This usually happens when: You move to a new location Your Wi-Fi name/password changes Someone else configured the Pi You forgot the old network credentials In this guide, I’ll show you how to: Diagnose the problem Reconfigure Wi-Fi without a monitor Force the Pi onto a new network Recover SSH access The methods below work for: Raspberry Pi 3 Raspberry Pi 4 Raspberry Pi 5 Raspberry Pi Zero W/2W Understanding the Problem A Raspberry Pi configured for headless access boots and automatically tries to connect to the Wi-Fi credentials saved inside: wpa_supplicant.conf Enter fullscreen mode Exit fullscreen mode If: the saved Wi-Fi no longer exists the password changed or the Pi is too far from…