Sometimes the temp sensor will lose Wi-Fi connection because the network is not available.
1. You can wait for the sensor to reconnect itself. The device will try to reconnect to Wi-Fi automatically every 10-30 minutes, depending on the upload frequency you choose.
2. You can also reset Wi-Fi manually in Bluetooth range.
1) Please be in Bluetooth range, turn on your phone Bluetooth, GPS/location.
2) Tap the sensor on the device list, waiting for the graph page loaded 100%,
3) Tap the settings icon on the upper right corner, enter the settings page.
4) Reset Wi-Fi, then enter your Wi-Fi password.
3. A low battery status may cause poor Wi-Fi connection, please replace battery if needed.
4. If possible, please set 2 different SSID for the 2.4Ghz Wi-Fi and the 5Ghz Wi-Fi, then connect the temperature sensor to the 2.4Ghz Wi-Fi.
If more help is required, feel free to contact us via support@govee.com.