: Ensure your 4G180 has at least 50% battery or is plugged into a stable power source.
If you use the Tenda WiFi app, sometimes it will notify you of an update, but manual downloading via the website is more reliable for file verification. tenda 4g180 firmware update
Firmware updates often refine how the internal antennas handle 4G/3G handoffs, reducing those frustrating "connected but no internet" moments. : Ensure your 4G180 has at least 50%