Putty error: No supported authentication methods available (server sent: publickey)

I am trying to setup a server for my wordpress site. I was going through this tutorial ( to setup ssh keys. After step five when it says to try logging in with the ssh keys with the newly created user putty returns back with a error saying: “No supported authentication methods available (server sent: publickey)” I put the public key in the authorized_keys file and everything the tutorial said but it still returns that error. If I try logging in to root with the same private key it works fine. It just shows that error when I try logging in with the new user.

Any help would be appreciated.

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I also had this problem, login from putty as root was fine but from the non-root user gave me the error above. I tried the methods given in the link but it didn’t help, eventually I managed to do it by following this guide:

Hi, I resolved this by using PuTYY Generator. Click Conversion/Import key from the menu Then select the private key generated previously from the terminal and finally save the new private key. I used this new generated private key to connect via SSH using putty to the droplet and it works for me.

you can rectify this issue by updating the putty in to latest version. previously I got this issue but after updating the putty it works fine.