How To Fix CNVMBTRFC034 - Could not determine host name &1 from IP number &2.

CNVMBTRFC034 - Overview

• Message type: E = Error

• Message class: CNVMBTRFC - Messages used in RFC Management and its objects

• Message number: 034

• Message text: Could not determine host name &1 from IP number &2.

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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CNVMBTRFC034 - Details

• The SAP error message CNVMBTRFC034 indicates that the system is unable to resolve a hostname from a given IP address. This can occur in various scenarios, particularly when dealing with Remote Function Calls (RFC) or when the system is trying to connect to another server or service.
  
  Cause:
  
  DNS Resolution Issues: The most common cause is that the DNS server is unable to resolve the IP address to a hostname. This could be due to misconfiguration in the DNS settings or the hostname not being registered in the DNS.
  Hosts File Configuration: If the hostname is not found in the DNS, the system may check the local hosts file (e.g., /etc/hosts on Unix/Linux or C:\Windows\System32\drivers\etc\hosts on Windows). If the entry is missing or incorrect, it can lead to this error.
  Network Issues: There may be network connectivity issues preventing the system from reaching the DNS server or the target host.
  Firewall or Security Settings: Firewalls