How To Fix D-009 - Server not known

SAP Error Message - Details

• Message type: E = Error

• Message class: D- -

• Message number: 009

• Message text: Server not known

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 D-009 - Server not known ?

  The SAP error message D-009 "Server not known" typically indicates that the SAP system is unable to resolve the hostname of the server you are trying to connect to. This can occur for various reasons, including network issues, incorrect configuration, or DNS resolution problems.
  Causes:
  
  Incorrect Hostname: The hostname specified in the connection settings may be incorrect or misspelled.
  DNS Issues: The DNS server may not be able to resolve the hostname to an IP address.
  Network Configuration: There may be network issues preventing the client from reaching the server.
  SAP Profile Configuration: The SAP instance profile may not be correctly configured with the appropriate hostname.
  Firewall or Security Settings: Firewalls or security settings may be blocking access to the server.
  
  Solutions:
  
  
  Check Hostname: Verify that the hostname you are using is correct. You can try pinging the hostname from the command line to see if it resolves to an IP address.
  ping <hostname>
  
  
  DNS Configuration: Ensure that the DNS settings on your client machine are correctly configured. You can also try adding the hostname and its corresponding IP address to the hosts file on your machine (e.g., /etc/hosts on Unix/Linux or C:\Windows\System32\drivers\etc\hosts on Windows).
  
  
  Network Connectivity: Check your network connection to ensure that you can reach the server. You can use tools like traceroute or tracert to diagnose network paths.
  
  
  SAP Profile Settings: Review the SAP instance profile settings to ensure that the hostname is correctly specified. You can check the instance profile using transaction RZ10.
  
  
  Firewall Settings: If applicable, check firewall settings on both the client and server sides to ensure that the necessary ports are open for SAP communication.
  
  
  SAP GUI Configuration: If you are using SAP GUI, ensure that the connection settings (e.g., Application Server, System Number) are correctly configured.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  SAP Community: The SAP Community forums can be a valuable resource for troubleshooting and finding solutions from other users who may have encountered similar issues.
  Logs: Review the SAP logs (e.g., dev_w0, dev_rfc) for any additional error messages that may provide more context about the issue.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your network administrator or SAP Basis team for further investigation.