View cellular network signal.
1. From a device that is connected to the AT&T Wireless Internet network, open the web browser and go to http://attwirelessinternet. Enter your Login then click LOGIN.
2. When Connected to 4G LTE, the 4G LTE icon will be displayed. The Signal Bars display the connection strength. The more bars that are displayed, the better the connection.
3. You can also view the Signal Strength on the device itself.
Note: View LED States to learn more about the device's LED states.