DAQmx 9172/9477 modules lose PC connectivity

[VeeJay]

Have you tried updating the daqmx drivers? I am not sure why you are still having this problem. I had to deal with this for a while, but the USB setting seems to have reduced the likelihood, but not sure it has completely.

Also, IS your laptop (I am assuming you are using a Laptop), connected to a power source all the time?

[nooneshome]

It's actually a desktop PC.  

[VeeJay]

Oops!! Well, I am not sure what's going on. I do have this issue with NI to look into, but all I have been said so far is what I have shared with you. And what you posted is exactly what I have done. Now I am worried that my USB 6008 will start behaving sporadically.

Any NI Engineers have further details on this?

[JaredRo]

nooneshome,

I would recommend that you update your DAQmx driver to the newest version.  It should be compatible with your system.  I've included the link below:

NI-DAQmx 9.6
http://joule.ni.com/nidu/cds/view/p/id/3423/lang/en

Have you installed the hotfix for USB devices running on Windows XP?  This can be found at the link below:

Hotfix
http://support.microsoft.com/kb/969238

[nooneshome]

I will try both and let you know.   thanks for your support!

[khalsans]

I have the same infuriating problem on my Dell PCs and on my Dell laptops here. For me, it seems to be an electrical noise issue.

I tried using a better USB cable with ferrites installed. I tried re-routing the usb cable. SO for, nothing works. Next, I plan to try a USB isolator.

I am really hesitant to use these on future designs.