configuring xbee s2

when i try to configure xbee s2 in xctu, the operating PAN ID is 0. the operating channel is also 0.I have two xbee s2 modules and both have the same problem. As a result i cant establish a communication between them.
how can i make them communicate?? pls help.

Set scan channel to FFFE and PAN ID to any value other than 0. Try it

Hi. I’m having the same problem. X-CTU tells me FFFE is not a valid number as it is out of range.

I think you might face this problem, because your XBee device is not series 2. May be you are using XBee-PRO. In XBee-PRO, 0x3FFF is a valid range.