Re: 2FA with Authy using WinSCP
Hard to tell without a full log file.
Anyway, if your server issues the additional authentication prompt as part of a session (instead of properly using an SSH keyboard interactive authentication), it breaks SFTP protocol. I assume you are not able to connect with any SSH client, right?
Anyway, if your server issues the additional authentication prompt as part of a session (instead of properly using an SSH keyboard interactive authentication), it breaks SFTP protocol. I assume you are not able to connect with any SSH client, right?