Error Updating PTP-450. Failed to upload file

Hello,

 Im having a problem triyng to update a PTP-450 using CNUT 4.8.1

My PTP-450 is in 13.1.4 im triying to update it to 13.4 and i got the next error ....

true 172.17.2.229 BHUL450 - DES 0A003EB0EE13 CANOPY 13.1.4 BHUL450-DES 081514 CANOPYBOOT 1.0 07/08/15 17:32:00 Failed to upload file ptp450_c120.img,java.net.SocketException: Connection reset by peer: socket write error  

General actual info 

Device Type :
5.4GHz MIMO OFDM - Backhaul - Timing Master - 0a-00-3e-b0-ee-13
Board Type :
P11 C120
Software Version :
CANOPY 13.1.4 BHUL450-DES
Board MSN :
6069QS0JD0
FPGA Version :
081514

The version of the package is  CANOPY134BUILDOFFICIAL_MIMO_PMP450_DESAES_S.pkg3

Please i need your help