Yubico Forum

I recently updated two of my machines from Windows 8 to 8.1 RTM. One machine worked fine, and I have no issues with the Yubikey NEO working for Windows logon & LastPass.

The other one, however, doesn't work at all. Plugging the NEO in to any USB port results in it flashing a few times then turning off. I can't logon and I can't use it to fill OTPs. I managed to disable the Yubikey logon security by using a USB hub, but I still have the issue of the NEO not working in any of the machine's built-in USB ports.

Under device manager it does not detect as a HID device, instead it installs as a "Microsoft Usbccid Smartcard Reader (WUDF)", of which the properties state "This device cannot start. (Code 10)" (probably because it's the incorrect driver).

Does anyone have an suggestions on how to get it operational again? The machine was working flawless with the NEO prior to the 8.1 update.

which usb mode is ur neo as? -m82 here and its working fine in win8.1

Whatever the default is. I haven't changed the USB mode. It works fine on one machine with Windows 8.1, but not the other. On the one that works, there is no mention of the Usbccid Smartcard Reader.

Uninstall everything under your Universal Serial Bus Controller in the windows device manager. Then reboot.

Do you have VMWare installed ? It does take control on the windows driver on windows 8.x and you will need to uninstall and reboot and have windows detect all USB again.

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-Tom

No VMWare. Uninstalling all the USB devices didn't help either, unfortunately.

We tested the NEO both under Windows 8.1 preview and Windows 8.1 RTM

The Yubikey NEO works fine, so unless it was damaged or you did some mis-configuration it will work on Windows 8.1

You should also keep in mind that newest version of Windows do not provide drivers for all type of USB and USB v3 therefore you should visit the website of your manufacturer and install the latest USB drivers.

Another advice is to try switching USB port on the same machine or using a USB HUB to verify that is not a problem connected with the specific USB port.

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-Tom

Thanks for the reply, Tom.

Yes, my NEO works fine on my other Windows 8.1 RTM machine, it's definitely not faulty and I haven't changed the configuration at all since I first set it up.

As far as drivers go, the machine in question is a laptop with a standard Intel chipset (Core2 generation), no USB3, no fancy drivers available for it. All the built-in USB ports do not work with the NEO, but it works perfectly if I connect a USB hub.

It has something to do with the machine now detecting the NEO as a smartcard reader and not a HID device. Is this switchable? Will setting the -m82 mode as mentioned previously fix that?

Mode -m82 is a composite mode, HID+CCID

To get the Yubikey part of the NEO working you will have to enable either HID or HID+CCID

CCID only wont work

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-Tom

Ok, today I did a clean install of Windows 8.1 on the machine in question: same problem, the NEO installs as a Smartcard, not a HID device. So it's something specific to that machine and Windows 8.1, hardware-wise. It does it on ALL USB ports, but WILL work if I use a hub.

Interestingly, the command-line and GUI personalisation tools both same there is no Yubikey present. So essentially it's just not installing correctly at all.

Does anyone have any further advice/experience with the NEO not installing properly under Windows 8 or 8.1?

Charliee - I have exactly the same problem. Dell Studio XPS 1640, with Windows 8.1. My Yubikey Neo worked without any problem under Windows 8, but it's totally stuffed on 8.1. I've tried all the recommendations on this thread and no joy.

The answer seems to be the -m82 switch, and this is where my problems begin.

I understand I have to change the mode so that both HID+CCID are active. I know how to burn and run a Live Linux CD, but after that I am completely and utterly lost. Can anyone direct me to the simplest walkthrough possible of how to run these tools within a Linux environment? Words, pictures (big ones) and video would be useful.

I know about ykneo-ccid-tools and ykneo-ccid-modeswitch but have no idea what to do with them. Does anyone have a Windows version? I could live with a command line version, but feel much more comfortable with GUI.

As it stands I have a Neo and two Standards that I can't use.