If Module Blue Light Blinks once in a second-All Normal
1.)Check weather your node Switch is ON(not mandatory).
2.)Check weather Wi-Fi Modem is ON.
3.) If Wi-Fi Modem is on check the indicators in the node.
If your module Blue Light Blinks Twice in a second – Wi-Fi Modem is not connected or Wi-Fi Signal is poor and Blue Light Blinks Thrice in a second – Problem is in gateway(check weather gateway is connected or not)
This shows your module is being updating and it will be automatically restarted.
During Updating weather WI-FI or Power is turn offed Nothing to worry, the old Version will be run after they turned on it start Update automatically.