Install the latest firmware onto your ESP32.
Connect your ESP32 via USB, then click install.
The installer asks whether to erase the device first. Leave Erase device unticked to keep your saved Wi-Fi settings when upgrading. Tick it for a first-time install, or to start again from a clean slate.
The display reads from a small middleware container that talks to your firewall's API, so set that up first — the dashboard has nothing to show without it. Wi-Fi details and the middleware address are entered on the device itself after flashing, so nothing is baked into the firmware.