If you go to the Xfinity Hotspot Settings website and don't see the option to turn the feature on or off, your device isn't ...

Upper case "XFINITY" SSIDs are encrypted from device to the hotspot's access point (AP) and are intended for Comcast customers who have installed the Xfinity security profile in their mobile devices.

These steps assume you're the primary holder of the public Xfinity WiFi hotspot source. You can toggle off the auto-hotspot ...