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Iridium OpenPort- Why does my unit keep losing the Data Connection?
Summary:

This article explains troubleshooting on the OpenPort
Article:

After my status changes from False to True for my Data connection after some time the unit reverts back to False and will no longer connect? Please refer to the installation manual, as the unit needs to be at least 4 foot above the ground. This may vary depending on your obstruction and other equipment user nearby