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Occassional VI_ERROR_TMO

Question asked by arpanshah78 on Jan 7, 2014
My program communicates to two Agilent 34970A instrument over same GPIB card (82350B PCI based card). 

Occasionally my program (x86) is getting VI_ERROR_TMO. The timeout is set to 2 seconds. My program used to work fine on Windows XP and Agilent 14.2. After putting it on Windows 7 (x64 bit) and Agilent 16.1, I am getting this error occasionally. 

Are there any tips/advises that I can use to investigate the issue?