I have purchased 15 pcs of XBEE Series 2 modules. They were of firmware 1.x.2.1. I updated them to 1041 & 1241. Now I am having a problem.
Lets Take Case: A is AT-Coordinator B & C are AT-Router
I only changed PAN-ID to 110 of these modules. I am able to scan (ATND) both B & C.
I powered off all modules. took another module D (AT-Coordinator with same parameters as of A). I am unable to scan B & C by ATND. but when i replaced D by A, I was able to scan the network and also make connection to individual modules.
Few day back, i faced this problem. A (Coordinator) was communicating with B & C ( Routers) but wasn’t able to communicate with E ( Router). B,C & E have same settings, i also took settings from B and applied it to E via X-CTU.
Another coordinator D was able to scan E but not B & C.
The coordinators A & D had same settings and one coordinator was power on at a time ( all devices were powered off & on again after replacing coordintor). I tried much but was unable to make them all communicate with one coordintor. so I updated all modules firmwares but no positive results were obtained. I updated again (replacing routers with coordinators and vice versa) , I was able to make them all on single network.
Is there anything else I am missing ? ( or is there any hardware mismatch ?)
One more scenario:
A(Coordinator) was working fine with B & C (Routers) with PAN-ID=234
I changed PAN-ID of C with 110, scanned network by A (PANID=234), was able to scan B only. Then i gave command ATID110 to A, then scanned again, I wasn’t able to scan C. so I gave command ATID234 and scanned for B, i was unable to scan B either. I powered off all modules and powered again, I am unable to scan B or C from A. A & B have same PAN ID( they were working fine previously)