Make sure the panel is placed optimally for good cell reception.
Some tips for finding a good location:
Having the panel higher up and near an exterior wall.
Avoid having the panel in a basement or in the middle of a large structure such as being in a closet far from exterior walls.
Avoid having the panel nearby anything that may hamper cellular signaling. This includes but is not limited to: large metal objects or ductwork, sheet metal walls or any large electronics or appliances.
When moving the panel to a new location, allow up to 5 minutes for a connection to be established and test the communication by sending a command to arm or disarm the system using the Frontpoint App.