Instrument Control (GPIB, Serial, VISA, IVI)

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HW: NI USB-485 an Windows Server 2003

Hello, I have a problem with the USB driver for the USB-485 device. After several weeks of proper working something happend: the driver is no more correct installed, the device driver information for the attachen COM3 port shows altering every second "driver installed / driver not installed" and the second USB device (a mouse) gets frozen.

After reinstallation of the driver software the problem is still there.

Question: any tool available for complete deinstallation of the NI software ? (Software deinstallation via system does not wipe out all registry settings=

Any other idea to repair the system (complete USB deinstallation etc. did not help)

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Hi,

to remove all NI Software use MSI Blast, but please use it carefully.

You can find it here

 

Have you tried to use another USB Port?

 

Regards,
Tobias

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Hello, thanks for the answer:

 

- I tried "Blast.." already. But ,maybe that's a failure, I used it after deinstallation all NI Software via "System / Software ..." and nothing to blast was found. After reinstalling ... same errot as described above

- yes I tried several USB ports ... same result as above

 

Any further help is appreciated.

 

Regards, Michael

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Hello,

 

It is not possible for the NI-Serial driver to affect other USB devices attached to the system.  If non-NI USB devices are also affected, then this is actually a strange problem with your paricular system.  I woud think that the built in USB controller on your system has a problem.

 

Thanks,

Steven T.

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