After correct measurement of 1 channel 1 sample analog data 1 per minute with the USB 6009 for 2 days, the device stops with the error -50405

[bart@level]

Hi Hossein,

I already set the registry not to allow to turn off power of the USB hub. Thanks anyway.

Bart

[Hossein128]

Hi Bart,

Did you follow that too?

http://support.microsoft.com/kb/895962

Regards,

Hossein

[JÞB]

Hey bart.

It sounds like you know about the power management- and using a quality externally powered USB hub.  There is one other common cause- a USB device that is not 2.0 compliant being connected or a problem USB device connecting or disconnecting from the same hub.  Is anyone slipping another device in or out of the hub? is there anything else on the hub?

[bart@level]

Hai Hossein,

I will look into the registry settings,

thanks

Bart