USB-6009 not showing up in MAX

[britt]

accidentally posted this to the wrong forum yesterday. . .

I have used a USB-6009 with Windows XP fine for several years.  Last night I disconnected and reconnected its USB cable before shutting down.  This morning it showed up in MAX but failed the self test.  Also, I could not remove the device in MAX even when it was physically disconnected from the system (still showed up green in the device manager but still failed the self test).  I have a spare USB-6009 that also did not work, suggesting DAQmx / MAX was the problem.  After countless disconnects/reconnects and reboots, I finally uninstalled and reinstalled DAQmx and MAX.  Immediately after reinstalling, the problem persisted, but several disconnects/reconnects/reboots later I actually got the USB-6009 icon to go grey with the red X in MAX and then was able to remove it.  After plugging it back in it worked momentarily but then I had to reboot for other reasons and now I can't get it to show up in MAX at all - no devices present.  It shows up in my Windows Device Manager no problem, but not in MAX - any suggestions for things to try?  Thanks!

since posting this, I have upgraded to DAQmx 8.7.1 with still no success - the device shows up with as "USB-6009" with an NI icon in my Windows device manager but is absent in MAX.

[Steven_C]

Hi britt,

One thing that you may want to try in order to isolate the issue is to:

1) Try swapping the USB port of your device

2) Also, you may want to simply try uninstalling/reinstalling the device from the device manager and see if the problem persists.

3) A third thing to try may be to do a Windows "System Restore" to a point in time where your device works (in case Windows downloaded some driver that is conflicting witht he 6009) - this actually happens to my machine once in a while

4) Another suggestion would be to install the USB-6009 on a different machine and see if it shows up. This should let you know if it is a HW problem.

I hope this helps. Please let me know if any of these work.If they do not, we should at least have a better idea of the source of the problem. Thanks!

Best regards,

Steven

[britt]

Thanks for the suggestions.  After reinstalling all of the NI hardware drivers (took about 8 hours) the device seems to be working.

Do you (or anyone else) happen to know if it's OK to disconnect a USB cable to an NI device while Windows is running, and/or if an NI USB device is negatively affected by powering down the computer without shutting down Windows?  In other words, can I treat these like normal plug and play USB devices or do they require special care?

Thanks again,
Britt

[Steven_C]

Hi Britt,

I typically remove the USB-6009 from the PC just like a normal plug and play USB devices and do not see any problems. Has this situation happened to you more than once?

Best regards,

Steven

[britt]

this is the first time we've had to reinstall everything but the connections to another device (USB-6018) have long been flaky, typically requiring multiple reboots, dis/reconnections, and incantations to get recognized by MAX - the USB-6009 started giving similar problems several weeks before completely refusing to connect.