SQL VSS writer fails for SQL localdb on Azure AD Connect Sync server.

Challenge Backup or replication jobs with Application Aware Image-Processing enabled may fail on the server hosting Azure AD Connect Sync with an error indicating the SQL writer has failed. After the job has failed, running "Vssadmin list writers" from an administrative command prompt on the Azur...

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'...

How to Export SQL Logs

Purpose This article documents how to export logs from the two SQL database engines used by Veeam Backup & Replication: Microsoft SQL Server PostgreSQL Solution Microsoft SQL Server Log Collection The following steps require Microsoft SQL Server Management Studio SSMS. 1. Open Microsoft SQL Serve...

License Update Fails In Networks Where HTTP Proxy Must Be Used

Challenge License updating may fail if the machine where the Veeam software is installed does not have a direct connection to the Internet and must instead connect to the Internet via an HTTP proxy. For example, when this occurs with Veeam Backup & Replication, the Svc.VeeamBackup.log shows eithe...

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...

Error “Unexpected VHD Feature Mask ‘6’” on Hyper-V backup or replication job

Challenge The feature mask 6 error is Hyper-V specific. This KB covers that error and how to resolve it. Cause Feature mask 6 errors most often occur when a Hyper-V VM was a Physical to Virtual conversion using third party software. The issue is that some third party converter software creates th...

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...

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...

Release Information for Veeam ONE 13.0.1 RTM Patch 0

Update Applicability This "Patch 0" update for Veeam ONE 13.0.1 is strictly intended for deployments using the RTM release build 13.0.1.5860. If Veeam ONE 13.0.1 GA build 13.0.1.5924 is installed, this update can be ignored as it is not needed. All resolved issues listed in this article were foun...

How to Update Location Profile Endpoint Details and Preserve Access to an Existing Kopia Storage Repository

Purpose This article documents the correct procedure to update the Endpoint details in the Location Profile for an existing Kopia storage repository in S3-compatible stores and ensure the existing associated repositories remain accessible. Customers may wish to update the Endpoint details e.g.,...

"HTTP protocol is not supported, please use HTTPS." Error When Adding Object Storage

Challenge When attempting to add an S3-compatible Object Storage Repository, the wizard displays the error: HTTP protocol is not supported, please use HTTPS. If the service point is then modified to change to HTTPS, the wizard then displays the error: Failed to retrieve certificate from...

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...

Build Numbers and Versions of Veeam Plug-in for Nutanix AHV

This KB article lists all versions of the Veeam Plug-in for Nutanix AHV and their respective appliance build numbers. Version | Plug-in Build | Appliance Build | Release Date | Release Notes ---|---|---|---|--- Veeam Plug-in for Nutanix AHV 10 Releases Veeam Plug-in for Nutanix AHV 10.0 Included...

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+...

How to Create a Veeam Support Case

Phone Support To improve case handling, you must Open a Case via the portal before calling in. The phone system will ask for your case number and use advanced routing to connect you with the engineer handling your case or an appropriate product/feature specialized support engineer. Purpose This...

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...

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...

How To Enable DDBoost Immutability with Governance Mode

Purpose This article provides additional information for enabling immutability for the Dell Data Domain deduplicating storage appliance when using governance mode, as referenced in the Veeam Backup & Replication User Guide here: Veeam Backup & Replication User Guide Backup Infrastructure Componen...

Dell Unity Storage - "Unable to validate the specified certificate (Error Code: 0x1000100)"

Challenge When attempting to add a Dell Unity Storage Appliance that has been upgraded to firmware version 5.5 to Veeam Backup & Replication or operate backups to such storage, the following error occurs: Unable to validate the specified certificate Error Code: 0x1000100 Cause An investigation by...

Release Information for Veeam Backup for Microsoft 365 8.1 and Cumulative Patches

More Recent Version Available Please find the latest version of Veeam Backup for Microsoft 365 here: Veeam Downloads - Latest Version Build Numbers and Versions of Veeam Backup for Microsoft 365 Requirements This release can be used to: update manually from a previous Veeam Backup for Microsoft 3...

Release History for Veeam Service Provider Console 8.1

Newer Product Version Available A complete list of Veeam Service Provider Console versions and their release dates is available on KB4464: Build Numbers and Versions of Veeam Service Provider Console. Veeam Service Provider Console 8.1 Builds 8.1.0.21999 Security Vulnerabilities CVE- 2024-42448 |...

How to Test Port Connectivity

Purpose This article documents how to test connectivity between two machines over a specific port. Product Service Ports Most connection errors involving ports in the 61xx, 93xx, 94xx, and 10xxx ranges are related to Veeam product-related services. Determine if the port in the connection error is...

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...

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...

Sensitive data types in Veeam Backup & Replication and Veeam Backup for Microsoft 365 log files

Challenge When you open a support ticket, Veeam Customer Support specialists may request log files. These log files may contain information to which the terms of the data protection laws or internal company policies apply. Veeam Backup & Replication Veeam Backup & Replication log files may includ...

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...

How to Forcibly Stop Stuck Jobs

Notice of Future Change This article may be retired in the future. As the product has matured, the incidence of jobs or tasks becoming "stuck" has decreased significantly. However, there are instances where a job might be executing a background task, giving the appearance that it has become stuck...

How to Migrate the Veeam ONE Database

Article Applicability This article is specifically about relocating the Veeam ONE database to a different Microsoft SQL Server Instance and the Veeam ONE deployment remaining on the same machine. For information about relocating the Veeam ONE deployment, review: KB1801: How to Migrate Veeam ONE...

Windows 11 24H2 | Server 2025 - Recovery Media Issue

Issue Resolved in May 13 2025 Windows Update KB5058411 The underlying issue causing recovery media to have the problems documented in this article was resolved in Microsoft Update KB5058411 for Windows 11 and Server 2025. After applying the update, the recovery media must be recreated. Challenge...

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 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...

How to enable "Restore to Azure" Generation 2 VM Support

Feature Change in Veeam Backup & Replication 12.1 and higher Starting in Veeam Backup & Replication 12.1, the setting AzureEnableGeneration2VMRestore is now hard-coded to true. This change enables the restore to Microsoft Azure to generate Generation 2 VMsby default. Purpose This article document...

How to Collect Logs for Veeam Plug-in for SAP HANA

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

"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...

VM Disk Labels Out of Order After Restore

Challenge After Instant VM Recovery or Full VM Restore, a VMware VM appears to have been restored with its disks out of order. However, the disk files are each associated with the correct SCSI, IDE, or SATA disk IDs, disks are not out of order within the VM guest OS, and the VM otherwise function...

Task fails with error: Application is Shutting Down

Challenge Jobs of any type fail with the error, "Application is shutting down." For example: Application is shutting down. Failed to download disk. Shared memory connection was closed. Failed to upload disk. Agent failed to process method DataTransfer.SyncDisk Copy BackupSynthesizedStorageToTape...

Using the Diskshadow Utility to Manually Test VSS Operations

Windows Server Required This article documents how to use Diskshadow , which is only available in Server versions of Windows 2008+. Purpose This article documents how to manually create a volume shadow copy using the Diskshadow command-line utility in Windows. Cause Veeam products use the Microso...

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...

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...

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 manually collect recovery media logs for Veeam Agent for Linux

Challenge You cannot collect recovery media logs for Veeam Agent for Linux from the repository. In such a case, you can still manually collect recovery media logs from the Linux machine where the bare-metal restore is performed. Cause If the bare-metal restore is not completed, the recovery media...

How to Migrate Backup Data Between Repositories for Veeam Backup for Microsoft 365

Purpose This article provides information regarding migrating backup data between JET-based backup repositories and from a JET-based backup repository to a non-immutable object storage repository when using Veeam Backup for Microsoft 365. This article documents how to migrate backup data between...

Migration to Unified Veeam Data Cloud FAQ

Below are the most commonly asked questions. What changed with the Veeam Data Cloud for Microsoft 365 experience? Veeam transitioned customers to the Veeam Data Cloud Platform, a unified multi-workload interface. This new experience allows customers to manage Microsoft 365, Entra ID, Salesforce,...

Veeam Backup for Microsoft Azure Vulnerability - CVE-2025-23082

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...

Veeam Agent for Microsoft Windows Built-In Case Creation fails with "The request was aborted: Could not create SSL/TLS secure channel"

Article Applicability This article is regarding an issue that impacts Veeam Agent for Microsoft Windows build 5.0.0.4301 or older, and was fixed in build 5.0.1.4584. Challenge When attempting to open a support case using the Technical Support button within the Veeam Agent for Microsoft Windows...

Build Numbers and Versions of Veeam Agent for Oracle Solaris

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

"Item may have a virus reported by the virus scanner plug-in."

Challenge Backup jobs with SharePoint Online or OneDrive for Business items fail with the following warning: Processing OneDrive Username userurl finished with warning: Failed to backup item: filepath, Item may have a virus reported by the virus scanner plug-in. Error Message Change in Veeam Back...

How to disable TLS 1.0 with no impact on Veeam ONE functionality

Possible Veeam ONE issues with disabling TLS 1.0 protocol and their resolution plans...

Unable to exclude files from snapshot: Shadow Copy Optimization Writer timed out

Challenge A Veeam Agent for Microsoft Windows backup job configured to operate in file-level backup mode with an entire volume selected and individual folders excluded, may fail with the error shown below. Unable to exclude files from snapshot: Shadow Copy Optimization Writer timed out. Cause The...