Reach out to coralvue/ support.this is what they told me so if anyone needs to know,here’s there answer:
Yes, all memory is stored on the device so if you lose your WiFi connection or internet, the control will continue to run the regular schedule. The one thing you will not be able to do is connect to it and change settings.
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Sincerely,
Carlos Chacon. /So we can set it up get off WiFi and it will still keep the settings