How To Fix PO760 - (SAP)LPD on host &1 cannot accept a secured connection

SAP Error Message - Details

• Message type: E = Error

• Message class: PO - Spooler message

• Message number: 760

• Message text: (SAP)LPD on host &1 cannot accept a secured connection

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message PO760 - (SAP)LPD on host &1 cannot accept a secured connection ?

  The SAP error message PO760 indicates that the SAP system is unable to establish a secure connection to the specified host for the LPD (Line Printer Daemon) service. This can occur due to various reasons related to network configuration, security settings, or the LPD service itself.
  Causes of PO760 Error
  
  
  Network Issues: There may be network connectivity problems between the SAP system and the LPD host. This could include firewall settings blocking the connection or incorrect network configurations.
  
  
  LPD Configuration: The LPD service on the host may not be configured to accept secure connections. This could be due to misconfiguration in the LPD settings or the service not being started.
  
  
  SSL/TLS Configuration: If the connection is expected to be secured (using SSL/TLS), there may be issues with the SSL/TLS certificates. This could include expired certificates, untrusted certificate authorities, or incorrect certificate configurations.
  
  
  Host Name Resolution: The SAP system may not be able to resolve the hostname of the LPD server correctly, leading to connection failures.
  
  
  SAP Configuration: The SAP system itself may not be configured correctly to use secure connections for LPD.
  
  
  Solutions
  
  
  Check Network Connectivity:
  
  Ensure that the SAP system can reach the LPD host. You can use tools like ping or telnet to test connectivity.
  Verify that there are no firewalls blocking the connection on either side.
  
  
  
  Verify LPD Service:
  
  Check if the LPD service is running on the host. You may need to restart the service if it is down.
  Review the LPD configuration to ensure it is set up to accept secure connections.
  
  
  
  SSL/TLS Configuration:
  
  Check the SSL/TLS certificates being used. Ensure they are valid, not expired, and trusted by the SAP system.
  If necessary, update the certificates or configure the SAP system to trust the certificate authority that issued the LPD server's certificate.
  
  
  
  Host Name Resolution:
  
  Ensure that the hostname of the LPD server is correctly configured in the SAP system. You can test this by using the nslookup command or checking the /etc/hosts file (on Unix/Linux systems).
  
  
  
  SAP Configuration:
  
  Review the SAP configuration for LPD printing. Ensure that the settings for secure connections are correctly configured in the SAP system.
  Check transaction SPAD (Spool Administration) to verify the printer settings and ensure that the correct host and port are specified.
  
  
  
  Related Information
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP documentation for LPD configuration and secure printing to ensure all settings are correctly applied.
  Logs: Check the SAP system logs and the logs on the LPD server for any additional error messages that may provide more context about the failure.
  
  By following these steps, you should be able to diagnose and resolve the PO760 error in your SAP environment. If the issue persists, consider reaching out to SAP support for further assistance.