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Enphase Energy Cell Modem Upgrade Program
AT&T has begun shutting down their 3G service in the US as of February 2022. To ensure you can continue to monitor and control your Enphase solar energy system seamlessly, you may need to upgrade to a 4G cellular modem or connect your system to a Wi-Fi network.
Thank you for choosing Enphase.
To determine whether your modem is affected by the 3G shut down and to view options for upgrading to a 4G modem, please enter your Site ID below:
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Contact us with any questions.
Good news. Your current cell modem is a 4G modem, so your system is not impacted by the AT&T 3G service shutdown. However it's still a good idea to connect your system to your home Wi-Fi as a backup.
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According to our records, your site includes multiple modems that may result in connectivity issues after AT&T's 3G shutdown. We recommend that you connect your system to Wi-Fi, to monitor your system without cell modem connectivity.

You may also contact Customer Support for help identifying and upgrading your modems to 4G, or contact your installer for further assistance.
Click here to verify another Enphase site
Your current cell modem is a 3G modem and you may have connectivity issues after AT&T's 3G shutdown. What type of upgrade option would you like to consider?
Click here to verify another Enphase site
Your current cell modem is a 3G modem and you may have connectivity issues after AT&T's 3G shutdown. What type of upgrade option would you like to consider?
Click here to verify another Enphase site
Your current cell modem is a 3G modem and you may have connectivity issues after AT&T’s 3G shutdown. You need to contact your solar system installer to replace your 3G modem. In the meantime you can connect your Enphase system to Wi-Fi.
Click here to verify another Enphase site
 
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