We are using the Receive File Over FTP plug in to grab a .txt file. We configure

I'm now have the appenders set up for the plug in. I can connect to the sftp site using winscp or filezilla but still cannot connect through my process model. I check the logs and found this error regarding the SFTP plug-in. I'm using the same host/username/password/port in my process model as filezilla/winscp - what could be the issue here?

'FTP_receive_B2B_File', Node instance 583: 'Receive File Over SFTP'" "Exception class name: com.jcraft.jsch.JSchException" "Exception message: Error establishing SFTP connection. Confirm your hostname, username and password. See application server log for more details."
2015-02-25 19:51:19 [PX011] {pe29.kdb 15441} (Default) ERROR .a.noa "Activity 268436564: 'Receive File Over SFTP', Process 268435539: 'FTP_receive_B2B_File', Node instance 583: 'Receive File Over SFTP'" "Cause: An error occurred in executing an Activity Class. Recommended Action: Examine the activity class to correct the error and then resume."

I'm now have the appenders set up for the plug in. I can connect to the sftp site using winscp or filezilla but still cannot connect through my process model. I check the logs and found this error regarding the SFTP plug-in. I'm using the same host/username/password/port in my process model as filezilla/winscp - what could be the issue here?

'FTP_receive_B2B_File', Node instance 583: 'Receive File Over SFTP'" "Exception class name: com.jcraft.jsch.JSchException" "Exception message: Error establishing SFTP connection. Confirm your hostname, username and password. See application server log for more details."
2015-02-25 19:51:19 [PX011] {pe29.kdb 15441} (Default) ERROR .a.noa "Activity 268436564: 'Receive File Over SFTP', Process 268435539: 'FTP_receive_B2B_File', Node instance 583: 'Receive File Over SFTP'" "Cause: An error occurred in executing an Activity Class. Recommended Action: Examine the activity class to correct the error and then resume."