First, ensure all the connections between the ANN-80 panel and the devices on the network are secure. Check for any loose wiring or damaged cables. Next, review the programming settings on the panel to ensure they are correctly configured for communication with the devices. If everything seems to be in order, try power cycling the panel by turning it off, waiting a few minutes, and then turning it back on. If the issue persists, consult the ANN-80’s user manual for specific troubleshooting steps or contact Fire-Lite technical support for further assistance.