Hi,

I'm running Bcast from lesson 6 of the tutorial,
and it works well when there is only one mote between the transmitter and 
receiver;
however, when I placed two motes between them,
I encounter several problems.

First, receiver receives only one packet, not two.
Say it only receives a packet through node A;
then, when I turn off node A, it receives from node B without any problem.

Secondly, hop count is sometimes incorrect.
Sometimes a node has both green and red LEDs on
(which it shouldn't since it is only programmed for two hop counts
 -- green: 1hop, red: 2hop)

Thirdly and most importantly, sometimes I get flood of messages received at 
the receiver.
It seems like, according to the source, two intermediate nodes are 
communicating between each other,
not recognizing that the sequence number has not been updated.

Please help me with this if you know the answer to it.
None of the code being used are modified,
and hardware components are micaz and MIB520.

Thank you,
Marie 

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