Analog Discovery 2 Not Recognized by Computer

[Kelsi Terry]

Hi everyone. This weekend I was trying to test out my new Analog Discovery 2 on my laptop, but could not get very far because when I opened Waveforms, my device was not detected. I received a notification on my laptop when trying to connect the device via USB stating "The last USB device you connected to this laptop has malfunctioned, and Windows does not recognize it." I opened device manager and saw "Device Descriptor Request Failed". I faced the same problems using a secondary laptop also. I would like to know if this has happened to anyone else, and if so, did you find a solution? Should I exchange my Analog Discovery 2 for a new device?

[Fausto]

Hello @Kelsi Terry.

Which version of Windows are you using?

Which version of WaveForms are you using?

Have you tested the Analog Discovery 2 with a different system, a different USB cable, and/or a different USB port?

Do you have the sales order and invoice information for the purchase?

Regards,

Fausto

[attila]

Hi @Kelsi Terry

The "Device Descriptor Request Failed" could indicate USB contact issue or damaged USB controller.
Try using the original USB cable the device came with or other cables you have at hand, try different USB port, powered hub.

[bungernaut]

I have this exact same problem but a little more history:

The device used to work. It became intermittent after about a month of use (plug it in 10 times it would work only 5 times after reboot). After that there was a phase where it only worked on one computer. Now it no longer works on any computer.

On the Win10 computer that was the most reliable:

Plugin and device is not recognized. 

In the device manager the device status gives

Quote

Windows has stopped this device because it has reported problems. (Code 43)

A request for the USB device descriptor failed.

This is true for all ports on the PC, with the OEM cable. 

 

[attila]

Hi @bungernaut

This sounds like a contact issue.
Have you tried using the device's original USB cable or another cable you have on hand?

[bungernaut]

6 hours ago, attila said:

Hi @bungernaut

This sounds like a contact issue.
Have you tried using the device's original USB cable or another cable you have on hand?

Wow! I was using the OEM cable, so I tried another and indeed it was the cable!