Like I said before, I have 3 XBee modules (ZB S2), set in 3 Arduino boards: one coordinator, one router and one end device. Each module was configured using the old X-CTU, as API-2 mode, and my project just send six bytes from router/end to coordinator when its button is pressed.
Each device has the same fixed PAN ID and D5 option set to 1 (Associated Indicator, with a led). Also I'm checking modem status frame for "started" and "associated" messages, so I know when the network is ready.
But I noticed that, when I'm only powering the router, it blinks the associated led and send me the "associated" message, even without the coordinator! Also, different from the "always wake" end device, I'm not getting the "disassociated" message when the coordinator goes offline.
Am I missing any configuration in router?