How To Fix RSSDK012 - Error message &2 during test of TCP/IP connection &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSSDK -

• Message number: 012

• Message text: Error message &2 during test of TCP/IP connection &1

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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Smart SAP Assistant

• What is the cause and solution for SAP error message RSSDK012 - Error message &2 during test of TCP/IP connection &1 ?

  The SAP error message RSSDK012 indicates that there is an issue with the TCP/IP connection test for a specific connection in the SAP system. This error can occur for various reasons, and understanding the cause and potential solutions can help resolve the issue.
  Cause:
  
  Network Issues: The most common cause is a network connectivity problem between the SAP system and the target host. This could be due to firewalls, routing issues, or the target host being down.
  Incorrect Configuration: The TCP/IP connection might be incorrectly configured in the SAP system. This includes incorrect hostnames, IP addresses, or port numbers.
  Service Not Running: The service on the target host that the SAP system is trying to connect to may not be running or may not be listening on the specified port.
  DNS Resolution Issues: If the hostname cannot be resolved to an IP address, the connection will fail.
  Security Settings: Security settings, such as firewalls or security groups, may be blocking the connection.
  
  Solution:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to check if the target host is reachable from the SAP server.
  Ensure that there are no firewalls blocking the connection.
  
  
  
  Verify Configuration:
  
  Go to the SAP transaction SM59 (RFC Destinations) and check the configuration of the TCP/IP connection.
  Ensure that the hostname, IP address, and port number are correct.
  
  
  
  Check Service Status:
  
  Ensure that the service on the target host is running and listening on the specified port. You can use tools like netstat to check if the port is open.
  
  
  
  DNS Resolution:
  
  If using a hostname, ensure that it resolves correctly to the correct IP address. You can check this using the nslookup command.
  
  
  
  Review Security Settings:
  
  Check any firewalls or security groups that may be blocking the connection. Ensure that the necessary ports are open for communication.
  
  
  
  Test Connection:
  
  After making any changes, test the connection again in transaction SM59 to see if the issue is resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to RSSDK012 for any specific patches or updates that may address this issue.
  Logs: Review the system logs (transaction SM21) for any additional error messages that may provide more context about the issue.
  Documentation: Refer to SAP documentation for detailed information on configuring TCP/IP connections and troubleshooting connectivity issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RSSDK012 error message in your SAP system.