I have a large mesh of s2c Xbee's running zigbee ( currently most on 4061 software or the one preceding it )
I am having challenges with the mesh 'breaking up' and forming clusters of random meshes. Somehow I get a router transform into a co-ordinator and I see bunches of routerss jump across to the new meshes, leaving the 'real' mesh.
We have tried varying approaches, the XBEE's have a profile applied at build time and the embedded device they are connected to never does any AT configuration so I am convinced that the devices are not being asked to become co-ords.
We do send out some remote AT messages from the central PC tied to all this but it is limited to 'NI' messages so I fail to see how that can become a co-ordinator enable message.
Getting things back onto one mesh is a right pain too especially as the XBee's have a resistance to co-ordinator swaps. It has to be done in a very distinct order or you end up with orphaned devices that you can't get back in touch with without unplugging them and using a laptop and programming adaptor ( USB - XBEE )
What can I look for? How the hell are routers becoming co-ordinators.