Registration not working with Fujitsu Quaderno 2nd Gen

Here is what I get when I tried to register a brand new QUADERNO A4 (Gen. 2) (FMVDP41). Note that I have redacted the serial number, and added a single print() line for the variable m3:

$ dptrp1 register
Discovering Digital Paper for 30 seconds…
/home/bnewbold/dpt-rp1-py/.venv/lib/python3.8/site-packages/zeroconf/_services/browser.py:169: FutureWarning: <dptrp1.dptrp1.LookUpDPT object at 0x7f9f37cfd790> has no update_service method. Provide one (it can be empty if you don't care about the updates), it'll become mandatory.
  warnings.warn(
Found Digital Paper with serial number [REDACTED]
To discover only this specific device, call:

    /home/bnewbold/dpt-rp1-py/.venv/bin/dptrp1 --serial [REDACTED] register

Found digital paper at 192.168.0.139
To skip the discovery process (and this message), call:

    /home/bnewbold/dpt-rp1-py/.venv/bin/dptrp1 --addr 192.168.0.139 register

Cleaning up...
<Response [204]>
Requesting PIN...
Encoding nonce...
{'error_code': '40301', 'message': 'Bad parameters for registration process.'}
Traceback (most recent call last):
  File "/home/bnewbold/dpt-rp1-py/.venv/bin/dptrp1", line 8, in <module>
    sys.exit(main())
  File "/home/bnewbold/dpt-rp1-py/.venv/lib/python3.8/site-packages/dptrp1/cli/dptrp1.py", line 345, in main
    do_register(
  File "/home/bnewbold/dpt-rp1-py/.venv/lib/python3.8/site-packages/dptrp1/cli/dptrp1.py", line 208, in do_register
    _, key, device_id = d.register()
  File "/home/bnewbold/dpt-rp1-py/.venv/lib/python3.8/site-packages/dptrp1/dptrp1.py", line 240, in register
    if base64.b64decode(m3["a"]) != n2:
KeyError: 'a'

So it seems like the discovery part works, which is cool!

But from a first guess I would assume there has been some change to the registration process. I was able to sync and upload files from an Android mobile device, so I don’t think it is a problem with the reader itself. The reader firmware version is 1.0.00.17060FP.

Thanks for maintaining this cool python tool! Hoping this will be an easy way for me to transfer files to/from my device from Linux (Debian).

[vico]

FYI, I have successfully registered my Fujitsu Quaderno 2nd Gen (A4), via WiFi. I am using Ubuntu 21.10 and using package installed via pip.

[plaublin]

It looks like it tries to connect to the wrong address.

Can you double check the following?

• the 2 lines in dmesg that appear when you activate ethernet-over-usb, e.g.,

cdc_ether 2-1:1.0 usb0: register 'cdc_ether' at usb-0000:00:14.0-1, CDC Ethernet Device, aa:bb:cc:dd:ee:ff
cdc_ether 2-1:1.0 iface0: renamed from usb0   

• the configuration of your new iface0 interface (see this doc);
• avahi-resolve -n Android.local, which will give you a line such as Android.local fe80::xxxx:xxxx:xxxx:xxxx

Then, you should be able to run dptrp1 --addr [fe80::xxxx:xxxx:xxxx:xxxx%iface0] sync without errors.