How To Fix STUN_ORA025 - Could not open remote connection &

SAP Error Message - Details

• Message type: E = Error

• Message class: STUN_ORA - Messages for Function Group STUN_ORA (Oracle Statistics)

• Message number: 025

• Message text: Could not open remote 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.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message STUN_ORA025 - Could not open remote connection & ?

  The SAP error message STUN_ORA025: Could not open remote connection typically indicates an issue with establishing a connection to an Oracle database from an SAP system. This error can arise due to various reasons, including network issues, configuration problems, or database availability.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP application server and the Oracle database server.
  Database Availability: The Oracle database may be down or not reachable.
  Configuration Errors: Incorrect configuration settings in the SAP system or Oracle database, such as incorrect connection parameters (hostname, port, service name).
  Firewall Restrictions: Firewalls may be blocking the connection between the SAP system and the Oracle database.
  Oracle Listener Issues: The Oracle listener may not be running or configured correctly.
  User Authentication: Incorrect user credentials or insufficient privileges to access the database.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or tnsping to verify that the SAP server can reach the Oracle database server.
  Ensure that the network is stable and there are no interruptions.
  
  
  
  Verify Database Status:
  
  Check if the Oracle database is up and running. You can do this by logging into the database directly using SQL*Plus or another database client.
  Ensure that the database is not in a restricted mode.
  
  
  
  Review Connection Parameters:
  
  Check the connection parameters in the SAP system (e.g., DB Connection settings in the SAP profile).
  Ensure that the hostname, port, and service name are correct.
  
  
  
  Check Oracle Listener:
  
  Ensure that the Oracle listener is running. You can check this using the command lsnrctl status on the Oracle server.
  If the listener is not running, start it using lsnrctl start.
  
  
  
  Firewall Configuration:
  
  Check if there are any firewalls between the SAP and Oracle servers that might be blocking the connection.
  Ensure that the necessary ports (default is 1521 for Oracle) are open.
  
  
  
  User Credentials:
  
  Verify that the user credentials used for the connection are correct and that the user has the necessary permissions to access the database.
  
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes for any known issues or patches related to this error message.
  Review the SAP documentation for any specific configuration requirements for connecting to Oracle databases.
  
  
  
  Related Information:
  
  SAP Basis Team: If you are not the SAP Basis administrator, it may be necessary to involve them to troubleshoot the issue further.
  Oracle Documentation: Refer to Oracle's documentation for troubleshooting database connectivity issues.
  Logs: Check the SAP system logs (transaction SM21) and Oracle alert logs for any additional error messages that could provide more context.
  
  By following these steps, you should be able to identify and resolve the cause of the STUN_ORA025 error.