It seems that the BR node and BR host do not communicate with each other.In fact,the node receives periodically a reset signal from the watchdog since it does not receive the configuration from the host , it loops in the following while statement (in the AppColdStart fonction) :
while((!sFlags.bRunCoordinator) && (!sFlags.bRunRouter))
{
/* See if there is any data available on the serial link */
vProcessDataFromLink();
}
P.S.
I used Raspberry Pi B with the OpenWRT from JN-AN-1110.