Snap Deploy Error - Chunk Count Mismatch

i am testing snap deploy v2 i have downloaded the latest build. when i use multicast to deploy an image to other PCs the operation starts then suddenly some clients are removed from the list and are rebooted, then all clients face the same problem.

the error message that appears in the log file is:
chunk count mismatch.

here is the complete error from the log file:
<event code="1" id="40" message="Host '192.168.1.69' failed to deploy (0x340001)
Tag = 0x9C5A16066A60D39B
Failed to deploy Master Image. (0x330001)
Tag = 0xE3394061D0E3A1EC
Internal error: chunk count mismatch (0x70001)
Tag = 0x0" module="52" time="1174987046" type="4" />

i have tested unicast and it works but extremely slow to be used to deploy an image to more than 1 computer, especially a 48GB image.

any ideas to help?

i have created a log file on the client, MTFTPclient on the client, doesn't get a resoponse and so the process halts and the chunk count mismatch is generated. it is because the buffer is empty. still i didn't manage to solve this problem