SFTP Channel error: Read timed out

Hello Experts,

     I am using PI version 7.11. I have a SFTP scenario in which I am getting error as below for both the sender and receiver SFTP channels:

               "Exception received: com.jcraft.jsch.JSchException: Session.connect: java.net.SocketTimeoutException: Read timed out"

     Please provide your valuable inputs to sort this out.

Thanks

Ravi..