Scale-Out Backup Repository Offload task fails with "There is not enough space on the disk"

Article Applicability This KB Article is specific to an issue where a SOBR Offload task fails with an error reporting that "There is not enough space on the disk " and the path specified in the error contains 'VeeamBackupTemp '. Challenge Scale-Out Backup Repository's Offload task fails with erro...

Build Numbers and Versions of Veeam Backup for Microsoft 365

This KB article lists all versions of Veeam Backup for Microsoft 365 and their respective build numbers. For more information on downloading the latest version of Veeam Backup for Microsoft 365, visit: Veeam Backup for Microsoft 365 -- Current Version Download Page Veeam Backup for Microsoft 365 ...

Could not invoke guest operation error in a job when using vSphere API for Guest OS connection

Challenge When Microsoft User Profile Disks for example, in a Windows RDS farm are used, Veeam Application Aware Image Processing through vSphere API may fail with the following error: Could not invokeguestoperation. Cause When processing Guest OS data through vSphere API, Veeam needs to deploy a...

Cannot request cryptocontainer. Win32 error:Keyset as registered is invalid

Challenge A Veeam Agent for Microsoft Windows backup job completes with the following warnings: Cannot request cryptocontainer. Win32 error:Keyset as registered is invalid. and SQL VSS Writer is missing: databases will be backed up in crash-consistent state and transaction log processing will be...

Upgrading the PostgreSQL Database Engine Software Used by Veeam Backup for Microsoft 365

Support Scope This article is provided as a courtesy to give customers a high-level explanation of how to upgrade the underlying PostgreSQL database engine used to host the Veeam Backup for Microsoft 365 configuration database. Per the Veeam Customer Support Policy, section 10: Support for Veeam...

Optimizing and Maintaining SQL Server Instance Hosting Veeam Service Provider Console Configuration Database

Purpose This article was produced in coordination with the Veeam R&D team to provide Service Providers with a comprehensive list of the most common performance improvements and maintenance actions relating to the underlying Microsoft SQL Server instance that hosts the Veeam Service Provider Conso...

403 Forbidden Message When Accessing Veeam Data Cloud App

Challenge Attempting to load the Veeam Data Cloud app webpage fails with the error: 403 Forbidden Microsoft-Azure-Application-Gateway/v2 Cause The HTTP status code "403 forbidden--you don't have permission to access this resource" is displayed when a web server recognizes a user's request but is...

Veeam ONE Web Client Page Fails to Load After Updating .NET Runtime Components

Veeam ONE 12.2 and 12.3 .NET Version Requirements Veeam ONE build 12.2 build 12.2.0.4093 and 12.3 build 12.3.0.4670 require and support only .NET 8.0. Note: All three component versions must match. ASP.NET Core Runtime 8.0.x Microsoft ASP.NET Core 8.0.x - Shared Framework x64 .NET Desktop Runtime...

Agent Backup Job Fails With "Veeam Backup and Replication version is not compatible with Veeam Agent for Windows"

Challenge After upgrading Veeam Agent for Microsoft Windows , the backup job fails to run and displays the error message: Error: Managed session has failed: Veeam Backup and Replication version is not compatible with Veeam Agent for Windows. Cause This error occurs when the version of Veeam Agent...

How to uninstall Veeam CDP VAIO filter driver manually

Article Applicability This article documents the manual filter driver removal process. If Veeam Backup & Replication is available, the recommended method for uninstalling the I/O Filter is documented in the user guide. Veeam Backup & Replication - Updating and Uninstalling I/O Filter Objective Th...

Veeam Cloud Connect jobs fail with "Authentication failed because the remote party has closed the transport stream" error

Challenge After upgrade of Veeam Backup & Replication on the Veeam Cloud Connect service provider's backup server to version 10, tenant jobs may start failing with the following error: "Authentication failed because the remote party has closed the transport stream ". At the same time, the...

Restored Linux Machine Fails to Boot

Challenge An issue with initiramfs may cause the restored Linux machine to fail to boot with the following symptoms: ForRHEL/CentOS/SUSE systems, during the boot process, they will drop into the dracut emergency shell and display errors similar to: dracut-initqueue timeout - starting timeout...

Adding DDboost repository results in error 5049 or 5037

When attempting to add an EMC Data Domain repository, one of the following errors is received:Illegal operation. Err: 5037Failed to connect to '\datadomain'.ORUnable to connect to Data Domain...

Hyperlinks in SSRS-based reports do not work

Challenge Some hyperlinks in SSRS-based reports expire in 20 minutes version 6.0-10.0. NOTE: In Veeam ONE Reporter v11 the timeout is 12 hours. Cause The behavior is caused by Microsoft SSRS implementation specifics. Solution This behavior is by Microsoft SSRS design. More Information If you have...

Backup fails with: "The system cannot find the file specified." or "The device is not ready."

Version Applicability This article does not list specific versions of Veeam products because the underlying issue stems from a problem with the Microsoft Volume Shadow Copy Service and is independent of any Veeam product versions. As such, the issue can affect environments regardless of the Veeam...

How To Configure Veeam Backup for Microsoft 365 to Use Microsoft Graph Export API for Teams

Purpose This article documents the procedure for enabling Veeam Backup for Microsoft 365 to backup Teams public channel posts using the Teams Export APIs.Veeam Backup for Microsoft 365 backs up Teams channel messages. For more information on the limitations of Teams chat backup, click here. In...

How to Connect to an Object Storage Repository via AWS Privatelink / Direct Connect

Purpose This article documents the configuration of Veeam Backup & Replication for using AWS PrivateLink or AWS Direct Connect. These services enable the following connections without the use of public endpoints: Scale-Out Backup Repository offload to Capacity Tier or Archive Tier Backup to an...

How to Create a Veeam Account

Challenge A Veeam account grants you access to the Veeam My Account Portal, the platform that allows you to perform the following actions: View Veeam licenses Download Veeam products Raise and update support cases Access Veeam technical resources Send sales inquiries and renewals requests Once yo...

Veeam Guest Catalog Service does not start after upgrade

Challenge After a consecutive upgrade of Veeam Backup & Replication and Enterprise Manager to a newer version, VeeamCatalogSvc fails to start if the EM database is located on a remote server. Cause The account that is used to start VeeamCatalogSVC might not have access to the Veeam Enterprise...

Exchange Backup Jobs Warning "Failed to find group owner account"

Challenge Backup jobs with Microsoft Exchange items may result in the warning message shown in both the Veeam Backup for Microsoft 365 console and the Veeam.Archiver.Proxy.log file. Processing mailbox $mailboxName completed with warning: Failed to find group owner account This appears in the...

My Account Portal - Role Management FAQ

Click here for Case Administrator FAQ for Veeam Cloud Service Providers Case Opening Restrictions Only users with the roles of License Administrator or Case Administrator are authorized to submit support cases. Please confirm the identity of the License Administrator associated with your company'...

Failed to call RPC function 'StartAgent': Timed out requesting agent port for client sessions.

Challenge A task fails with the error: Error: Failed to call RPC function 'StartAgent': Timed out requesting agent port for client sessions. Cause These errors may occur because of either: A firewall prevents the remote machine from initiating communication on one or more of the assigned...

The specified network name is no longer available

Challenge When accessing backup files on a CIFS SMB repository, Veeam Backup & Replication reports either of the following errors: The specified network name is no longer available. code 59, 0x8007003B An unexpected network error occurred. code 64, 0x80070040 Veeam Backup & Replication uses SMB...

VSS Freeze Wait Timeout

Challenge A Backup or Replication tasks fails with the following errors: "VSSControl: Failed to prepare guest for freeze, wait timeout 900 sec." "VSSControl: Failed to freeze guest, wait timeout" Solution Possible Security Software Interference Anti-virus software may impede VSS operations. As an...

Veeam Operations Fail When the Backup Server Has Limited Internet Access

Article Applicability This article addresses an issue that may occur when using a Windows-based deployment of Veeam Backup & Replication v13, where the Veeam Backup Server or other Windows-based component servers are isolated from the internet or subject to significant firewall restrictions...

Vulnerabilities Resolved in Veeam Backup & Replication 13.0.1.1071

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 13.0.1.1071. Veeam Product Latest Version Download Page Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we...

Using Veeam Agents with Xen Orchestra (Vates XCP-NG and XenServer)

Purpose This article documents how to use Veeam Agent for Microsoft Windows and Veeam Agent for Linux , managed by Veeam Backup & Replication, to protect virtual machines in XenServer and XCP-NG environments that are managed by Xen Orchestra. While these hypervisors are not directly supported for...

Build Numbers and Versions of Veeam Service Provider Console

This KB article lists all versions of Veeam Service Provider Console and their respective build numbers. For more information on downloading the latest version of Veeam Service Provider Console, visit: Veeam Service Provider Console -- Current Version Download Page Veeam Service Provider Console ...

How to Clean up the Credentials Manager in Veeam Backup & Replication

Challenge Over time, duplicate or outdated credentials may be saved in the Credentials Manager of Veeam Backup & Replication. This article documents a process for reviewing and cleaning up the Credentials Manager. Solution No changes to the Credentials Manager account list are saved untilOK is...

Troubleshooting Certificate and Connection Errors in Cloud Connect

Challenge When adding a Service Provider on the tenant's Veeam Backup & Replication, either of the following errors occurs: Certificate validation failed. Unable to connect to the service provider. Certificate validation failed. Authentication failed because the remote party has closed the...

"Backup performance data collection failure"

Challenge Veeam ONE raises the Backup performance data collection failure alarm. Example 1 - Performance data cannot be collected from the repository associated with Veeam Backup & Replication. Example 2 - Performance data cannot be collected from a Hyper-V host managed by Veeam Backup &...

ConfigStoreRootPath Cluster Parameter Is Not Defined

Challenge This article describes how to fix the warning/error "ConfigStoreRootPath cluster parameter is not defined" appearing in the following situations: When attempting to add a Windows Server 2016 and later Hyper-V cluster to the Veeam Backup & Replication Console. When attempting to backup a...

How to configure Email Notifications when using Gmail or Google Apps Mail

Solution Select the product below to be taken to the product-specific information for using Google Gmail to send email notifications. Veeam Backup & Replication v12 Veeam Backup & Replication v13 Veeam ONE v12 Veeam ONE v13 Veeam Backup for Microsoft 365 v7+ Veeam Agent for Microsoft Windows v6+...

Backup Copy "Source backup file has different block size."

Challenge The issue described in this KB Article only occurs when a Backup Copy job is using the Periodic copy pruning mode. During consecutive Backup Copy intervals, the same machine or group of machines fails to be processed. The message "Initial copy did not complete, and will resume on the ne...

Tips for DAG Exchange Backup and Replication in vSphere

vSphere Snapshot Improvements This article was initially written when vSphere 5 snapshot operations were known and expected to cause small amounts of I/O stun to a VM's guest OS. Improvements in the latter vSphere versions, including significant changes to snapshot operation methodology in vSpher...

Installing package Transport Error: Error 1935.An error occurred during the installation of assembly component

Challenge When Veeam Backup & Replication attempts to install the Veeam Transport package VeeamTransport.msiC:\Program Files\Veeam\Backup and Replication\Backup\Packages\VeeamTransport.msi the package fails to install, and the following errors may be displayed in the UI: Installing package...

The dependency service or group failed to start

Challenge Cause This error is usually caused by one or more Windows VSS services being disabled. To fix it, you will need to go to Start Run, and enter "services.msc" without quotes. Here, you will see a list of services, their description, and whether or not they are running. Make sure RPC servi...

Guest processing fails for Nutanix AHV, Proxmox VE, Scale Computing HyperCore

Challenge When running backup or replication jobs for Windows virtual machines hosted on Nutanix AHV, Proxmox VE, or Scale Computing HyperCore with Veeam Backup & Replication 13.0.1 Patch 2, guest processing fails with one of the following errors: Failed to install guest processing components for...

Appliance Installation Stuck on "Configuring addons"

Challenge During the deployment of a Veeam Backup & Replication v13 appliance Veeam Software Appliance, Veeam Infrastructure Appliance, or Veeam Hardened Repository, the installer stalls on the "Configuring addons" step. When this occurs, switching to tty1 Ctrl+Alt+F1, then using Alt+Tab to switc...

Vulnerability Scanner Detection Related to CVE-2024-7264

Support Statement This Veeam KB article was created to address customers' concerns regarding the detection of the libcurl library by their security software on VMware Backup Proxies, where the VMware VDDK package is installed. Libcurl is a component of VMware VDDK Virtual Disk Development Kit,...

Antivirus Exclusions for Veeam Plug-ins for Enterprise Applications

Purpose To ensure the performance and reliability of Veeam Plug-ins for Enterprise Applications, we strongly advise implementing the antivirus exclusions outlined in this article. Interference caused by security software will not always cause Veeam Plug-ins for Enterprise Applications to fail; so...

Veeam Backup for Google Cloud - Critical Vulnerability (CVE-2022-43549)

Automatic Patching of Components The fix for the vulnerability discussed in this article has been automatically deployed to all Veeam Backup for Google Cloud Backup Appliances that have been configured to have access to repository.veeam.com. Most users will have no additional actions to perform...

Converting Disk from RAW to QCOW2 to Allow For Incremental Backup

Purpose This article documents how to convert a Disk from RAW to QCOW2, allowing Veeam Backup for Oracle Linux Virtualization Manager and Red Hat Virtualization to create an incremental backup of the disk. As documented in the Veeam Backup for Oracle Linux Virtualization Manager and Red Hat...

Job to the Linux Repository Fails with "No connection could be made because the target machine actively refused it xx.xx.xx.xx:2500"

Challenge When multiple tasks are attempting to use the same Linux repository simultaneously, some connections may fail with the error: No connection could be made because the target machine actively refused it xx.xx.xx.xx:2500. The port shown in the error is a data transmission port, and may be...

How to Perform a Manual Failback (Reverse Replication)

Challenge This article explains the steps to perform a manual failback using reverse replication when a normal failback fails or is not possible because the replica was powered on outside of the Veeam console. This process turns replication on its head and uses it as a tool to synchronize the...

Win32 error: The network path was not found. Code 53

Challenge A server processed by a job fails with the following error: Error: Failed to connect to guest agent. Errors: 'Cannot connect to the host's administrative share. Host: . Account: .... Win32 error:The network path was not found. Code: 53 Cannot connect to the host's administrative share...

How to use Veeam Live OS ISO

Purpose This article documents utilizing the Veeam Live OS ISO to gain local root access to the Veeam Backup & Replication Veeam Software Appliance when the Host Management Console is unavailable or inaccessible. Solution Downloading Veeam Live OS ISO Download VeeamLIVE ISO Release date: 2025-11-...

Veeam Backup Enterprise Manager Vulnerability (CVE-2024-40715)

Veeam Software Security Commitment Veeam® is committed to ensuring its products protect customers from potential risks. As part of that commitment, we operate a Vulnerability Disclosure Program VDP for all Veeam products and perform extensive internal code audits. When a vulnerability is...

Antivirus Exclusions for Veeam Agent for Mac

Purpose This article documents antivirus exclusions that may be created to reduce the impact that antivirus software has on the functionality of Veeam Agent for Mac. Note: Antivirus will not always cause Veeam Agent for Mac functions to fail; antivirus software may also negatively impact backup...

How to Enable Extended Logging of SPNs Used During Connections

Veeam Backup & Replication 12 Feature This article is regarding a feature available starting in Veeam Backup & Replication 12. Purpose This article documents how to enable the logging of Service Principal Names SPNs used during Kereberos-based connections. Use Case When troubleshooting Kerberos...