Error Description:

While connecting to SFTP using SFTP Adapter(Blogical.Shared.Adapters.Sftp v1)

Method: Blogical.Shared.Adapters.Sftp.SharpSsh.Sftp.connect
Error: Unable to connect to Sftp host [XXXXXX]

------------------------------
Information:
Type: System.Exception
Target:
Message: Unable to connect to Sftp host [XXXXXX]
Stacktrace:

------------------------------
Type: Tamir.SharpSsh.jsch.JSchException
Target: Void connect(Int32)
Message: Auth fail
Stacktrace:
   at Tamir.SharpSsh.jsch.Session.connect(Int32 connectTimeout)
   at Tamir.SharpSsh.SshBase.ConnectSession(Int32 tcpPort)
   at Tamir.SharpSsh.SshBase.Connect(Int32 tcpPort)
   at Blogical.Shared.Adapters.Sftp.SharpSsh.Sftp.connect(Boolean

I don't know the circumstances, but your error message says "Auth fail" so I would guess that there might be some incorrect information?

are you connecting with a username and password or public/private key?

user name and Password. and all the settings are correct. Planning to configure this SFTP in another box to  check the actual issue.

Now we are getting another error on different BOX

I think this issue related with the Blogical.Shared.Adapters.Sftp Version you are using.

It seems that the version you are using in development environment which contains ProxyPort property is newer than the version in your staging or production server which does not contain ProxyPort propery.

You should use the consistent versions in different environment