Cannot connect to remote host

[koote]

[Info  - 07:22:19.831] Resolving ssh remote authority 'ssh-remote+devbox' (attemp #1)
[Trace  - 07:22:19.842] Identity keys:
/Users/zzz/.ssh/id_ed25519 ssh-ed25519 SHA256:xxxxxxxxxxxxxxxxxxx
**[Info  - 07:22:21.689] Trying no-auth authentication**
[Error  - 07:22:22.617] Error resolving authority
Error: All configured authentication methods failed
    at me (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:155776)
    at /Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:409435
    at authHandler (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:404812)
    at Se (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:158994)
    at USERAUTH_FAILURE (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:147797)
    at 51 (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:311810)
    at e.exports.M (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:178339)
    at H.decrypt (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:274675)
    at e.exports.F [as _parse] (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:177863)
    at e.exports.parse (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:182250)
    at Socket.<anonymous> (/Users/zzz/.kiro/extensions/jeanp413.open-remote-ssh-0.0.49-universal/out/extension.js:1:154516)
    at Socket.emit (node:events:519:28)
    at Socket.emit (node:domain:489:12)
    at addChunk (node:internal/streams/readable:561:12)
    at readableAddChunkPushByteMode (node:internal/streams/readable:512:3)
    at Readable.push (node:internal/streams/readable:392:5)
    at TCP.onStreamRead (node:internal/stream_base_commons:189:23)

I can successfully connect to the remote host in VSCode with official remote SSH extension.
I am now trying to setup the remote connection in Amazon Kiro.
I noticed the log message "Trying no-auth authentication", why it is no-auth?