title: Winscp SFTP error:**Server refused public key signature despite accepting key.**
body: <p>I have installed Openssh on windows 2008 server, I was able to connect to it using public key authentication from my windows client machine, but after few days started getting error like below.
  <strong>Server refused public key signature despite accepting key.</strong></p>
  
  <p>I am using winscp to connect to remote machine.</p>