Issue with log-in to WinSCP

When I try to log in to WinSCP, I am getting error message like "Host is not communicating for more than 15 seconds". I tried multiple times, but facing the same. Could you please help me with this. I am attaching the screenshot of the error message.

First, make sure you are trying to connect using the right protocol. Maybe you are supposed to use FTP, not SFTP?

If you are sure you should use SFTP: Are you able to connect using any other SFTP client? If you can, please post its and WinSCP's session log files.