In some case you can ask why does my available 4G LTE Wi-Fi Hotspot internet connection sometimes run slow or show that no internet connection is available?
The coverage for the built-in Wi-Fi Hotspot depends on the wireless carrier network coverage. When you are in areas where coverage fluctuates, performance may be impacted. In a 2G-coverage area, the Wi-Fi Hotspot will not work. In a 3G‑coverage area, streaming data or video to your devices may result in the degradation of your service. View the coverage map.
Also, the vehicle ignition needs to be in the “Run” or “Accessory” position for the Wi-Fi Hotspot to be active.