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SFTP Seeburger could not connect to remote host

Hi,

We have configured a Receiver SFTP Communication Channel in SAP PI 7.3.

When we're sending messages to the 3rd party, SOMETIMES it is successfully sent however there are also times that it fails in the Adapter Engine and we need to restart the communication channel then resend the failed message.

Here is the Error from the Communication Channel log:

Message processing failed. Cause: javax.resource.ResourceException: Fatal exception: javax.resource.ResourceException: >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false, >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false

More details in Audit Protocol:

Message could not be forwarded to the JCA adapter. Reason: Fatal exception: javax.resource.ResourceException: >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false, >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false

MP: exception caught with cause javax.resource.ResourceException: Fatal exception: javax.resource.ResourceException: >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false, >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false

Exception caught by adapter framework: Fatal exception: javax.resource.ResourceException: >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false, >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false

Transmitting the message to endpoint <local> using connection File_http://sap.com/xi/XI/System failed, due to: com.sap.engine.interfaces.messaging.api.exception.MessagingException: javax.resource.ResourceException: Fatal exception: javax.resource.ResourceException: >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false, >> Description: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>> Details: putFile: Could not connect to remote host; Reason: SFTP client was not able to connect: com.seeburger.sftp.exception.ConfigurationException: Could not connect, maybe the ports or the host is not reachable. Caused by: Connection timed out: connect>>SendingStatus: NOT_TRANSMITTED>>FaultCategory: COMMUNICATION_ERROR>>Retryable: false>>Fatal: false

Please advise.

thank you.

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