The LEDs on the Sync Module are located on the top of the device. Below is a chart explaining the meanings of the LED indicators, along with corresponding links to relevant support articles for troubleshooting.
Note: The light pattern is the same for both Sync Module (1st Gen) and Sync Module 2.
LED: Solid blue
Activity: Sync Module is starting up.
LED: Blinking blue, solid green
Activity: Sync Module is in pairing mode and ready to be set up.
LED: Solid blue, blinking green
Activity: Sync Module has fallen offline and is attempting to reconnect to the previous network.
LED: Solid red
LED: Solid blue, solid green
Activity: Sync Module is online and connected to your network.