I have had a Simon XT system for 5+ years. I recently experienced a low system battery and replaced the battery (following the video instructions noted on this site). Since replacing the battery, the two additional two way talking touchpanels that I have at each of the lower door entrances are no longer communicating with the Simon XT. I have tried to resend the signal to the devices and it fails, I have tried to delete the devices and reenroll (which works temporarily but then fails). Basically, the red screen comes up saying the touchpanel has lost communication with the Simon XT and is offline. I have to reenroll for the touchpanels to work again. Is there another trick anyone has that may help me understand why the communication between my Simon XT and my touchpanels is no longer working? I checked again to make sure nothing looked out of the ordinary inside the panel from the battery replacement. Is there a sensor, antenna, etc. that I should check? I have no idea what to do?
Touchpanels Not Communicating with Simon XT