Tips and Tricks: Veeam Backup Error for Hyper-V

Table of Contents

  1. Purpose of document
  2. High level Overview of Veeam Backup Scenario
  3. Veeam Backup Error
  4. Root Cause:
  5. Resolution
    5.1. Resolution1
    5.2. Resolution2
  6. End of Document

Tips and Tricks: Veeam Backup Error for Hyper-V

1. Purpose of document

Purpose of this document is to explain how to resolve one of the Veeam Backup issue “Processing VM1 Error: read: A connection attempt failed because the connected party did not properly respond “.

2. High level Overview of Veeam Backup Scenario

Taking backup of VM’s which are on Standalone Windows HyperV.

3. Veeam Backup Error

Veeam Backup Issue: While taking backup of VM’s which are hosted on Windows Hyper-V below error occurring.

Error message: “Processing VMNAME Error: read: A connection attempt failed because the connected party did not properly respond “. 

Error Screen Shot:

4. Root Cause:

Only one direction ports are open from Veeam Backup Server to Windows Hyper-V and VM’s.

FromToProtocolPortNotes
Veeam Backup Server (Veeam Server)Microsoft Windows Hyper-V & Microsoft Windows VM guest OSTCP6184Default port used for communication with the Veeam Agent for Microsoft Windows Service.
If the default port number is already in use, Veeam Agent for Microsoft Windows Service will try to use the next port number.
Veeam Backup Server (Veeam Server)Microsoft Windows Hyper-V & Microsoft Windows VM guest OSTCP6160, 11731Default ports used for communication with the Veeam Installer Service.
Veeam Backup Server (Veeam Server)Microsoft Windows Hyper-V & Microsoft Windows VM guest OSTCP & UDP135, 137 to 139, 445Ports on a Microsoft Windows server used for deploying the Distribution Server component.
Veeam Backup Server (Veeam Server)Microsoft Windows Hyper-V & Microsoft Windows VM guest OSTCP49152 to 65535 
(for Microsoft Windows 2008 and newer)
Dynamic RPC port range. For more information, see this Microsoft KB article.
Veeam Backup Server (Veeam Server)Microsoft Windows Hyper-V & Microsoft Windows VM guest OSTCP9380Default port used for communication with the Veeam Distribution Service.
Veeam Backup Server (Veeam Server)Microsoft Windows Hyper-V & Microsoft Windows VM guest OSTCP2500 to 5000[For Microsoft SQL logs shipping] Ports used to collect Microsoft SQL logs from the Veeam Agent computer.

5. Resolution

Two resolutions are available.

5.1. Resolution1

Open below reverse ports from Hyper-V and VM’s to Veeam backup server. See more detail at Veeam portal .

FromToProtocolPortNotes
Microsoft Windows Hyper-V & Microsoft Windows VM guest OSVeeam Backup Server (Veeam Server)TCP10005Default port used by Veeam Agent for Microsoft Windows operating in the managed mode for communication with the Veeam Backup server.
Data between the Veeam Agent computer and backup repositories is transferred directly, bypassing Veeam backup servers.
Microsoft Windows Hyper-V & Microsoft Windows VM guest OSVeeam Backup Server (Veeam Server)TCP2500 to 5000[For Microsoft SQL logs shipping] Ports used to collect Microsoft SQL logs from the Veeam Agent computer.
Microsoft Windows Hyper-V & Microsoft Windows VM guest OSVeeam Backup Server (Veeam Server)TCP6167, 2500 to 5000[For Microsoft SQL logs shipping] Ports used to collect Microsoft SQL logs from the Veeam Agent computer operating as part of a failover cluster with SQL Server AlwaysOn Availability Groups.
Microsoft Windows Hyper-V & Microsoft Windows VM guest OSVeeam Backup Server (Veeam Server)TCP9395, 6183Ports used locally on the Veeam Agent computer for communication between Veeam Agent components and Veeam Agent for Microsoft Windows Service.
If the default port number is already in use, Veeam Agent for Microsoft Windows Service will try to use the next port number.
5.2. Resolution2

Check mark “Run server on this side” in Veeam console for Standalone Hyper-V which you already added.

  • Login to Veeam Console
  • Click on Inventory => Virtual Infrastructure => Microsoft Hyper-V => Standalone Hosts => Select the IP or name of the Windows Hyper-V => Properties
  • Credentials => Ports => “Run server on this side”. For more detail about “Run server on this side”refer Veeam Portal.

6.     End of Document

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One thought to “Tips and Tricks: Veeam Backup Error for Hyper-V”

  1. Master of Industrial Engineering Telkom University says:

    Hi! nice posting, I’ve read like this, but this is the right one. where did you get this idea?

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