If the LED pin is configured.
- Short, fast blinks (one per second) – the router is connecting to a network.
- Short, long blinks (one per 4 seconds) – normal operations.
- Three short blinks – the router cannot send a report to a coordinator.
Flash firmware and permit joining to a network on your coordinator.
Re-pairing or reset to factory defaults
Power on, wait 2 seconds, power off, repeat this cycle three times.
If you configured the GPIO or “External wake-up” button on “Input 1”, click and hold the button for 10 seconds. The “Switch” mode for that button should be off.