SFTP Connection timed out error

Hi Team, I am getting below error while connecting to sftp I given username and password correct as provided by them. Can you please help in to this how to rectify this error.

<part name="summary">

        <summary>Exception occurred when binding was invoked.

Exception occurred during invocation of JCA binding: "JCA Binding execute of Reference operation 'Put' failed due to: JCA Binding Component connection issue.

JCA Binding Component is unable to create an outbound JCA (CCI) connection.

BDL.Customer.IKEA:OUT_FTP_IKEA_STOCKREPORT [ Put_ptt::Put(opaque) ] : The JCA Binding Component was unable to establish an outbound JCA CCI connection due to the following issue: Error in establishing a session with SSH Server..

Error in establishing a session with SSH Server..

Unable to establish a session with the server.

Please ensure hostname and port specified to login to the server are correct.

Please make sure that the JCA connection factory and any dependent connection factories have been configured with a sufficient limit for max connections. Please also make sure that the physical connection to the backend EIS is available and the backend itself is accepting connections.

". 

The invoked JCA adapter raised a resource exception.

Please examine the above error message carefully to determine a resolution.

</summary>

      </part>

      <part name="code">

        <code>null</code>

      </part>

      <part name="detail">

        <detail>Connection timed out (Connection timed out)</detail>