How To Fix D4444 - Unable to determine list of host names

D4444 - Overview

• Message type: E = Error

• Message class: D4 - DB2/400 specific messages

• Message number: 444

• Message text: Unable to determine list of host names

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 D4444 - Unable to determine list of host names ?

  The SAP error message D4444, "Unable to determine list of host names," typically occurs in the context of network configuration or when the SAP system is trying to resolve hostnames for communication between different components or systems. Here are some potential causes, solutions, and related information for this error:
  Causes:
  
  DNS 
  Configuration Issues: The system may not be able to resolve hostnames due to incorrect DNS settings or issues with the DNS server.
  Hosts File Misconfiguration: The /etc/hosts file (on Unix/Linux) or C:\Windows\System32\drivers\etc\hosts file (on Windows) may not contain the necessary entries for the hostnames.
  Network Connectivity Problems: There may be network issues preventing the SAP system from reaching the DNS server or the specified hosts.
  SAP Profile Configuration: The SAP instance profile may not be correctly configured to include the necessary hostname information.
  Firewall or Security Settings: Firewalls or security settings may be blocking access to the required network resources.
  
  Solutions:
  
  
  Check DNS Configuration:
  
  Ensure that the DNS