WAN Accelerator Fails to Install

Challenge When creating a new WAN Accelerator or reconfiguring an existing WAN Accelerator, the installation of the WAN Accelerator package fails with the error: Error Installing package WAN Accelerator Error: Error 1920.Service Veeam WAN Accelerator Service VeeamWANSvc failed to start. Verify...

How to Install Grafana with K10 Dashboard and Data Sources Pre-provisioned

Purpose Starting in Veeam Kasten for Kubernetes v7.5.0, Grafana will no longer be included by default. This in-depth technical guide will demonstrate the process of installing Grafana on Kubernetes and populating it with Kasten Data. It will allow you to quickly access pre-provisioned Kasten...

Vulnerability Scanner Detection Related to CVE-2023-38545

Veeam Backup & Replication 12.1.2 Release - Article Update With the release of Veeam Backup & Replication 12.1.2, the VDDK libraries, which contained the libcurl library, are no longer included with the Veeam Transport package. After upgrading, the Veeam Transport Package on remote components wil...

Immutability Warning for Data Domain Repository: "Immutability flag on backups was set with warning"

Challenge A backup job that targets a Dell Data Domain repository completes with the warning, "Immutability flag on backups was set with warning: ", specifically with the endings: Immutability period for some backups exceeds the maximum value allowed by the target repository, using the maximum...

How to Collect Logs for Veeam Plug-in for Oracle RMAN

Purpose This article documents how to collect the diagnostic information needed for a support case involving the Veeam Plug-in for Oracle RMAN. Solution 1. Collect diagnostic information as documented in the five sections below. 2. Combine the data into a single .zip file. 3. Attach the zip file ...

Monitoring of standalone hosts fails

Challenge No topology is created for standalone ESX/ESXi hosts. nworks logs contain the following errors: 0.0017 EXCOL+ VP120 retrieveHostProperties failed, buildMorList: zero count at nworksCore.Collectors.VimUtil.buildMorListList1 nodes at...

CVE-2025-23120

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...

How to use Azure Database for PostgreSQL with Veeam Backup for Microsoft 365

Purpose This article documents how to utilize Azure Database for PostgreSQL to host the Veeam Backup for Microsoft 365 v8 or higher configuration database. Solution After deploying Azure Database for PostgreSQL, additional steps must be performed to ensure it can be utilized by Veeam Backup for...

RPC function call failed. The RPC server is unavailable. w/ Application-Aware Processing

Challenge A Backup or Replication job utilizing Application-Aware Processing fails with the error: RPC error:The RPC server is unavailable. Code: 1722 Cause Possible causes include, organized from most common to rarest: The ports that Veeam Backup & Replication is attempting to use are blocked by...

Support Statement — Exchange Web Services (EWS) Deprecation

Challenge Microsoft has announced the deprecation of Exchange Web Services EWS in Exchange Online, with the initial phase-out target of October 1, 2026. Veeam Backup for Microsoft 365 and Veeam Data Cloud for Microsoft 365 currently leverage EWS for Exchange Online backup functionality. Note: Thi...

Release Information for IBM FlashSystem Plug-In for Veeam Backup & Replication

This plug-in leverages the Veeam Universal Storage API, which enables storage OEMs to allow Veeam Backup & Replication integration to the arrays for backup and replication jobs. Requirements Before installing IBM FlashSystem Plug-In v2.4.2, ensure that you are running at least Veeam Backup &...

An error message "Collecting thread has failed to initialize (Time difference between Veeam Monitor server and ESX host is too large. Make sure that NTP is enabled on ESX host and try again.) and will be stopped" in Veeam Monitor

Challenge The error "Connection problems" appears with vCenter server or ESXi host in Veeam ONE Monitor client infrastructure view. vCenter server or the ESXi host becomes grayed out: No data goes to the Veeam ONE Monitor client and into the Veeam ONE database. vCenter server or ESXi might be...

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...

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...

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...

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...

Zlib decompression error: [-3] | Failed to decompress LZ4 block

Challenge A Backup Job or Restore fails with either of the following errors: Zlib decompression error: -3. or Failed to decompress LZ4 block: Cause When the software reads from a an existing restore point it performs error detection using Cyclic Redundancy Checks CRC to validate the data. The err...

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...

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...

"Failed to connect to the database." Updater Configuration Check

Challenge When updating Veeam Backup & Replication the Configuration Check fails with either: Failed to connect to PostgreSQL server localhost:5432. An existing connection was forcibly closed by the remote host SSPI authentication failed for user Cause The account being used to run the update...

Build Numbers and Versions of Veeam Plug-ins for Enterprise Applications

Plug-In Download The latest version of all Plug-Ins for Enterprise Applications can be found at the bottom of the My Products page within the My Portal, in the Application Plug-Ins under Additional downloads. View by Plug-in Build Number View by Veeam Backup & Replication Release This table lists...

How to Change Veeam ONE Web Client Port

Purpose This article documents the procedure for changing the port used by the Veeam ONE Web Client, which by default is 1239. Solution Desktop Shortcut Not Automatically Updated This procedure does not update the Veeam ONE Web Client shortcut on the desktop C:\Users\Public\Desktop. Part 1: Updat...

How to Re-create the configuration database for Veeam Agent for Microsoft Windows

Resetting the configuration database will reset all Veeam Agent for Microsoft Windows settings, removing existing job settings and related job history. Restore points created before the reset will not be removed and will remain recoverable; however, as their job will have been removed, they will...

Failed dependencies: libmsi1 is needed by veeam-guest-interaction-proxy

Challenge Attempting to add a Linux server as a managed server fails with the following error: Failed dependencies: libmsi1 is needed by veeam-guest-interaction-proxy Rocky Linux may also display the following error if the libmsi1 package is already installed: Failed dependencies: ntfs-3g is need...

Release Information for Veeam Backup for Microsoft 365 7a Cumulative Patches

Requirements This Cumulative Patch can be used to: update manually from a previous Veeam Backup for Microsoft 365 7a release to the latest Cumulative Patch. upgrade an existing pre-7a Veeam Backup for Microsoft 365 server to Veeam Backup for Microsoft 365 7a with the latest Cumulative Patch...

Release Information for Veeam Backup & Replication 12 Day 0 Update

Update Applicability This "Day 0" update for Veeam Backup & Replication 12 is strictly intended for servers using the RTM release build 12.0.0.14 02. If Veeam Backup & Replication 12 GA build 12.0.0.14 20 is installed, this update can be ignored as it is not needed. All resolved issues listed in...

CVE-2022-26504

Challenge Vulnerability CVE-2022-26504 in Veeam Backup & Replication component used for Microsoft System Center Virtual Machine Manager SCVMM integration allows domain users to execute malicious code remotely. This may lead to gaining control over the target system. Severity : High CVSS v3 score ...

Vulnerabilities Resolved in Veeam Backup & Replication 13.0.2

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 13.0.2.29. 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 V...

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...

Upgrading Veeam Agent for Microsoft Windows from 5.0.x to 6.1.x fails with: Failed to migrate data to new database.

Challenge When attempting to upgrade Veeam Agent for Microsoft Windows from version 5.0.x to version 6.1.x, after selecting the option to "Preserve all setting from your previous product installation," the migration of the configuration database fails with: Failed to migrate data to new database:...

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 ...

Inventory of Non-initialized LTO-9 Tape Fails for HPE MSL2024 and 1/8 G2 Autoloader Tape Libraries

Challenge If Veeam Backup & Replication attempts to load an LTO-9 tape that has not been initialized or has an unknown status in the library, the library will report the error Source Not Ready error SCSI Check Condition 05/4481. Error MTSCSI PASS THROUGH DIRECT ended with Scsi Error Fixed format,...

Archiving Job to Azure Archive Storage fails: "This request is not authorized to perform this operation."

Challenge Archiving Job to Microsoft Azure Archive Storage fails with the following error: This request is not authorized to perform this operation. Agent failed to process method LongTerm.GetRepositoryKey Copy Cause This issue may be directly related to permissions but can also occur due to...

CVE-2022-26503

Challenge Vulnerability CVE-2022-26503 in Veeam Agent for Microsoft Windows allows local privilege escalation. An attacker who successfully exploited this vulnerability could run arbitrary code with LOCAL SYSTEM privileges. Severity : High CVSS v3 score : 7.8 Cause Veeam Agent for Microsoft Windo...

How to Back Up a Windows Failover Cluster with Veeam Agent for Microsoft Windows

Solution Information regarding Failover Cluster Support is available in the Veeam Agent Management Guide: Failover Cluster Support How to Protect Failover Clusters If this KB article did not resolve your issue or you need further assistance with Veeam software, please create a Veeam Support Case...

0x80042316 or Error: VSSControl: -2147212522

Challenge A backup job using Application-Aware Processing fails with the errors: Failed to create snapshot. Error code -2147212522. 'Backup job failed. Error VSS error: VSSESNAPSHOTSETINPROGRESS. Code:0x80042316 Solution Error code: 0x80042316 and Error code -2147212522 both represent the VSS...

File is locked by running session

Challenge A job or task within Veeam Backup & Replication displays the following message: File is locked by running session jobname Cause When tasks run in Veeam Backup & Replication, the files accessed by those tasks are tracked within the configuration database to prevent collision. As tasks ar...

SureBackup Ping Test Timed Out

Challenge A VM or group of VMs fail to pass the SureBackup Ping Test. Solution Below is a list of the most commonly observed causes of Ping Test failures and solutions for each. A router exists between the Veeam Server and Virtual Lab. The vNIC for the Isolated Network is misconfigured. The...

Vulnerabilities Resolved in Veeam Backup & Replication 13.0.1.2067

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 13.0.1.2067. 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...

Veeam Recovery Orchestrator Vulnerability ( CVE-2024-22021 |  CVE-2024-22022 )

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...

Exchange Backups failing with "Failed to access mailbox" starting September 13th, 2023

This issue is related to EX675238 listed in the Microsoft Health Dashboard, which caused some M365 environments to have issues with RESTAPI calls used to access the mailboxes externally...

Security Issue in Microsoft Azure Plug-In for Veeam Backup & Replication

Issue Details This article highlights a security-related issue in Microsoft Azure Plug-In for Veeam Backup & Replication 12.1.5.99 that may allow a user accessing the Veeam Backup & Replication server to obtain the administrator credentials of the Veeam Backup for Microsoft Azure backup appliance...

WDAC Supplemental Policy for Veeam Backup & Replication Components on Azure Local

Azure Local is the new name for Azure Stack HCI Azure Stack HCI is now considered part of Azure Local. Learn more about this rename in the Microsoft Documentation: Renaming Azure Stack HCI to Azure Local. Veeam Backup & Replication Version Requirement The solution documented in this article...

How to Test the Creation of Production Checkpoints in Hyper-V 2016 and Newer

Purpose This article documents how to force Hyper-V 2016 or newer to create a Production Checkpoint. Cause Forcing Hyper-V to create a Checkpoint in ProductionOnly mode is used as an isolation step when troubleshooting a Veeam job that fails to create a Recovery Checkpoint with Application-Aware...

Backup and Replication jobs fail with the following error: "CDeviceBase: resize is not supported. Failed to download disk"

Challenge Backup and Replication jobs fail with the following error: "CDeviceBase: resize is not supported. Failed to download disk". The following conditions must be met: 1. Veeam 8 Update 2 8.0.0.2021 or later 2. Backed up VM is running on ESXi 5.5 or later 3. Hot Add transport mode is used 4. ...

0x8004230F or Error: VSSControl: -2147212529 (VSS_E_UNEXPECTED_PROVIDER_ERROR)

Challenge A job fails with the error: Failed to prepare guest for hot backup. Error: VSSControl: -2147212529 Backup job failed. Discovery phase failed. Cannot add volumes to the snapshot set. Cannot add a volume to the snapshot set. Volume name: \?\Volume. Cannot add volume to the set of volumes...

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,...

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...

Veeam Service Provider Console Vulnerability (CVE-2024-42448 | CVE-2024-42449)

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...

exFAT Filesystem May Corrupt Veeam Backup Files

Challenge Testing performed in Veeam labs has determined that, in rare cases, Veeam backups may become corrupted when stored on the exFAT file system. Cause The issue appears to be related to a buffer management issue in the exFAT file system driver. There are no similar issues on other, more...