No supported authentication methods available in FileZilla

Solution 1:

The error means that FileZilla tried all available authentication methods and have not succeeded. In your case, there was only public key authentication method available (a method that the client [FileZilla] and the server agreed on mutually).

As you claim that you have set up FileZilla correctly, chances are that you have not configured the public key on server-side.

For instructions see:

• https://winscp.net/eng/docs/guide_public_key or
• https://www.howtoforge.com/how-to-configure-ssh-keys-authentication-with-putty-and-linux-server-in-5-quick-steps and
• Disconnected: no supported authentication methods available

Though actually all the guides expect that you have a way to connect (e.g. password authentication). What does not seem to be the case. Possibly your server administrator/hosting provider has its own mechanism for setting up the public key authentication.

If you specify, what is your server like, you may get more specific answers.

Solution 2:

I had similar issue error was Error: Disconnected: No supported authentication methods available (server sent: publickey)

Ans: Simply go to filezilla-Edit-settings-sftp-Add key file--add your ppk file-ok

connect again and issue resolved