Error adding security key

When I try to register a security key on the website, it says "LegacyServerError: Invalid request parameters. (100)". It's a new FIDO2 + U2F key, and I already have a previous key registered.

1Password Version: Not Provided
Extension Version: Not Provided
OS Version: Not Provided
Sync Type: Not Provided


  • ag_anaag_ana

    Team Member

    Hi @kathampy!

    Can you please let us know what browser this is happening with?

  • kathampykathampy
    edited November 2019

    It's happening on Firefox 70 and Edge Beta 79 (Chromium), on Windows 10 x64 1909.

  • brentybrenty

    Team Member

    @kathampy: To clarify, you're already signed into the web interface at that point, and trying to setup two-factor on your Profile page?

  • @brenty Yes, I was able to add the first key a few months ago, but now I cannot add another key in any browser.

  • JasperJasper

    Team Member

    Hi @kathampy,

    I checked our logs and it turns out your key's ID is longer that what our server is expecting/allowing.

    I'm interested what kind of U2F key you have? This is the first time anyone has run into this error.

  • kathampykathampy
    edited December 2019

    It’s an e-WBM GoldenGate series FIDO2 key. It has a U2F interface as well, if that could be an issue.

  • JasperJasper

    Team Member

    Thanks for the info. Unfortunately right now there's no workarounds to get this key added, but I've filed an issue on our side. Sorry for the trouble here!

  • kathampykathampy
    edited January 29

    I still have this issue

  • BenBen AWS Team

    Team Member


    You can keep an eye on our release notes where we'll announce any progress on this here:

    I'm sorry we haven't been able to address this yet.


  • Hi, I seem to be having this issue too, although it's strange since I was able to successfully register my key when I first set up my cloud account, but then it stopped working and I can't add it again.

    Failed to add security key.

    LegacyServerError: Invalid request parameters. (100)


    Time: 2020-02-01 14:12:26 +00:00

    I'm using a yubikey 5 NFC key.


Leave a Comment

BoldItalicStrikethroughOrdered listUnordered list
Align leftAlign centerAlign rightToggle HTML viewToggle full pageToggle lights
Drop image/file