Hello world,
my Nitrokey3 used to work for a while. GnuPG integration still appears to work but FIDO2 is failing. Whenever I get prompted to touch the device it does not blink and does not react to touches. It just briefly blinks blue when I unplug and replug it.
Tested with:
- Chromium (chrome://settings/securityKeys)
 - webauthn.io
 
It appears like the stick crashes and requires replugging to boot it again.
After plugging it in and waiting a few seconds I get can its status:
nitropy nk3 status
Command line tool to interact with Nitrokey devices 0.4.39
UUID:               10148E5…
Firmware version:   v1.5.0
Init status:        ok
Free blocks (int):  27
Free blocks (ext):  467
Variant:            LPC55
However when I ask for the status repeatedly this command seems stuck. When I Ctrl-C and retry I get:
nitropy nk3 status
Command line tool to interact with Nitrokey devices 0.4.39
Critical error:
An unhandled exception occurred
Exception encountered: CtapError(‘CTAP error: 0x06 - CHANNEL_BUSY’)
Critical error occurred, exiting now
Unexpected? Is this a bug? Would you like to get support/help?
- You can report issues at: https://support.nitrokey.com/
 - Writing an e-mail to support@nitrokey.com is also possible
 - Please attach the log: ‘/tmp/nitropy.log.18f70bcg’ with any support/help request!
 - Please check if you have udev rules installed: Firmware Update - Nitrokey Documentation
 
Anything I can try to isolate the cause?
…Christoph