.net error on Veeam Backup & Replication Install

When installing Veeam Backup & Replication on a Windows 7 machine you get the following error: failed to execute .net assembly. Error code: 0x8013101B...

How to Seed a Backup Copy Job

Purpose This article provides references to documentation explaining how to manually seed a Backup Copy job with Veeam Backup & Replication. Solution Veeam Backup & Replication User Guide: Creating Seed for Backup Copy Job Veeam Backup & Replication User Guide: Backup Copy Job Mapping If this KB...

Incorrect values in the properties of objects in SCOM console

Challenge The collection of performance and events works fine, but during investigation of CPU/RAM properties of Hosts, Virtual Machines etc. unexpected values are revealed. For example ESXi host has 345.9 GB of RAM, but the SCOM property field contains 3459 GB. Cause SCOM processes these values...

Hyper-V VSS snapshot import delay

Challenge If you backup your VMs using Dell Equallogic hardware VSS provider in some cases datavhd/vhdx that we read from VSS snapshot could be inconsistent Cause During Hyper-V backup, we execute VSS API call DoSnapshotSet, as soon as it completes, we execute ImportSnapshot VSS API call, without...

Error: Username or password is incorrect when adding vCloud Director

Challenge Encountering issue "Error: Username or password is incorrect" when adding vCloud Director to Veeam Backup & Replication. Solution 1. Verify that the correct password is being utilized. 2. Ports, Permissions, or DNS issues can cause this failure: 1. Ensure connectivity between the Veeam...

Animated Retention Policies/Modes

Objective To demonstrate Veeam Backup & Replication's different backup methods and their retention logic. Solution For information regarding Forward Incremental and Forever Forward Incremental , please see www.veeam.com/kb1932. For information regarding Reverse Incremental , please see...

Choosing a restore proxy for performing a Full VM restore

When doing a Full VM restore with Veeam Backup & Replication, sometimes you will need to choose a proxy to get the restore done faster. An example would be restoring across a WAN where Veeam is local, but the repository is on the remote site...

Failed to register replica VM

Challenge When using vCenter 4.0 unable to perform replication if target host doesn't have the same vNetwork as source. Replica network re-mapping doesn't work either. Replication job fails to register replica VM with the following error: Failed to register VM, configFile 'Datastore01...

Not getting hardware sensor alerts in a timely manner

Challenge You do not receive information about specific alerts regarding host hardware sensors quick enough for your environment, both in the Veeam ONE Monitor GUI and e-mails. For example, a host goes offline and you do not get any alerts for 20 minutes. Or there is another delayed alerting...

Unknown drive type [ISO]

Challenge After applying patch 1 for 6.1.0.181 you are no longer able to backup or replicate Hyper-V virtual machines, jobs fail with the "Unknown drive type ISO" error. The following entries can be seen in the job log: timestamp Error Failed to parse drive xmlnode. Xml:...

Retrieving the COM class factory for component with CLSID {xxxxxxxx} failed due to the following error: 800700c1.

Creating or copying folders with Veeam FastSCP 3.0.3 fails with the error: Retrieving the COM class factory for component with CLSID xxxxxxxx failed due to the following error: 800700c1...

VMware Objects are not visible in Ops Mgr

Challenge Either of the following scenarios apply: 1. No virtual infrastructure objects e.g., Clusters, Hosts, or VMs appear in the OpsMgr Console. Additionally, you may receive an alert in Ops Mgr from the Veeam Management Pack for Microsoft System Center Collector as follows: Alert Name: Agent...

Issue With Data Warehouse Instance Collation

Challenge The following error message is displayed while generating reports: Cannot resolve the collation conflict between "SQL collation "SQLLatin1GeneralCP1CIAS" and "YourSQLCollationName" in the equal to operation. Cause A non-default SQL Collation is in use that is not supported by OpsMgr,...

Error executing SQL script during upgrade to Veeam Backup & Replication 6.0.0

Veeam Backup & Replication upgrade to version 6.0.0 fails with the error: Error executing SQL script DBupdate.sqlfilled. Line 5225. There is already an object named 'db50update in the database'...

"Object reference not set to an instance of an object" error while opening nworks UI

Error "Object reference not set to an instance of an object" occurs when opening nworks UI...

vmspiDiscovery failing randomly with error "Specified file was not found"

Challenge The following message appears in OV: automatic action started. Operator : SYSTEM Node : Action : "%ovinstalldir%\bin\vmspiDiscovery.exe" -d 531927d0-b220-71e0-16a7-0a01cc800000 automatic action failed. Result : 1 Output : Error: Specified file was not found. This happens at random. Caus...

Veeam Backup & Replication Support for Rotated Media

Purpose This article provides links to documentation regarding Veeam Backup & Replication Repositories using Rotated Media. Solution Details about the functionality and configuration of repositories supporting rotated media can be found in the Veeam Backup & Replication User Guide: Limitations of...

Server Running Enterprise Manager reboots repeatedly

Challenge After installing Veeam Backup Enterprise Manager, after rebooting the machine repeatedly reboots. When Veeam Enterprise Manager is installed with a remote DB, and the installer is run with different credentials than what is specified during the install, the wrong credentials will get...

SureBackup SQL Script Verification

A SureBackup job fails with "SQL Server script, path VmConnectionTester.exe, ErrCode 10061" due to port connection failures...

Could not open a connection to SQL Server

This article describes a solution for when a job fails with the error: "Could not open a connection to SQL Server"...

One or more arguments are not correct

Challenge Installation of AIR Wizard any of them fails with the error "One or more arguments are not correct." Cause There is a conflict with the Windows firewall. Solution Disable Windows Firewall and make sure its Windows service is stopped even if it is disabled, make sure it was stopped befor...

SureBackup for a Virtual Machine with excluded disks

Challenge How to run a VM directly from a backup file if some of its disks are excluded from backup. Solution To run a VM directly from a backup file, make sure you select 'Remove excluded disks from VM configuration' option when excluding your disks from the backup: More Information If the 'Remo...

Module DevicePowerOn power on failed

Challenge Cause Veeam B&R creates the new adaptor with settings specified in Virtual Lab properties, however it also forces the old MAC address to be used as you see in the vmx file of a restored machine, that's why VM fails to power on as it's expecting to see mac address from VMware range. When...

Parameter is not valid. Failed to open Veeam Backup and Replication.

When opening the Veeam.Backup.Shell.exe, the following error occurs: Parameter is not valid...

How to Disable the Renaming of Reversed Incremental VBK File

Article Applicability This article is related to the automatic renaming of the VBK file, which occurs only when using Reverse Incremental backup mode. Note: Reverse Incremental as a backup mode will begin being deprecated starting in version 13 of Veeam Backup & Replication. For more information,...

Vulnerability Resolved in Veeam Backup & Replication 12.3.2.4854

All vulnerabilities documented in this article were resolved in Veeam Backup & Replication 12.3.2.4854. This vulnerability does not affect any version 13.x build of Veeam Backup & Replication due to architectural changes starting in version 13. Veeam Software Security Commitment Veeam® is committ...

Support Statement — Nutanix Mine with Veeam End of Life

Details Nutanix Mine with Veeam reached End-of-Life on 2026-04-30. As of this date, technical support cases may no longer be opened, and no further software or security updates will be provided. For more information, see the Nutanix EOL Announcement Bulletin - Nutanix Mine, released 2025-04-30...

Overcoming TCP/IP Connection Limits with PgBouncer and PostgreSQL on Windows

Challenge When running PgBouncer and PostgreSQL on Windows, especially under high-load scenarios with frequent connect/disconnect cycles, you may encounter exhaustion of available TCP ports. This is due to many connections ending up in the TIMEWAIT state, preventing immediate reuse of those ports...

Unable to Login to Web UI After Enabling MFA

Article Applicability This article is regarding a issue that was discovered in Veeam Recovery Orchestrator build 7.2.1.286, which was available for download between 2025-07-08 and 2025-07-17. The issue documented in this article was discovered, confirmed, and patched and a new build was released...

Error: ".NET (`dotnet-`) must be added to the blacklist to prevent unattended upgrades that could impact the availability of the Linux proxy."

Challenge Attempting to add a Linux-base proxy in Veeam Backup for Microsoft 365 fails with the error: Error: .NET dotnet- must be added to the blacklist to prevent unattended upgrades that could impact the availability of the Linux proxy. Cause This error occurs when the proxy deployment process...

Application Migration - Best Practices and Prerequisites

Purpose This article explains the prerequisites and best practices that must be considered for successful import during application migration. Solution Veeam Kasten for Kubernetes platform is built to support application migration across clusters, which is an extremely powerful feature that enabl...

No action was taken because the import artifacts already existed

Challenge Veeam Kasten for Kubernetes has smart logic built-in to perform intelligent actions. Assuming an Import job on the target cluster was successfully completed, unless there's a new restorepoint from the source cluster, the job won't run. This can happen if: there are no new restorepoints ...

Veeam Backup for Microsoft 365 Backup Copy May Fail to Transfer Microsoft Teams Channel Messages

Challenge Issue Summary In certain situations, when using a Backup Copy Job with an Archive Appliance to copy data from a Backup Job that was set up solely to protect Teams data via Teams Export APIs, the transfer of Teams channel messages may fail. Requirements for the Issue to Occur This issue...

How to Unhide the Restore Reason Page

Purpose This article documents how to unhide the Reason tab in the Restore Wizard after the "Do not show me this page again " option has been checked, causing the Reason tab to no longer appear during future restores. Solution The "Do not show me this page again" setting and other user-specific U...

Adding Azure Compute Account Fails With "This server does not seem to have Azure PowerShell installed"

Challenge When attempting to add an Azure Compute Account using the "Create a new account" option, the error message is shown stating that "This server does not seem to have Azure PowerShell installed." even though the Azure PowerShell is installed. Get-Module -ListAvailable -Name Azure -Refresh...

Veeam Recovery Orchestrator May Timeout During Execution of a Replica Plan if the Source vCenter Is Offline

Article Applicability The hotfix patch on this article is only intended for use with Veeam Recovery Orchestrator 5.0.0.2768. Challenge When executing a Replica plan, Veeam Recovery Orchestrator may hang as it processes each VM in the plan. This hang will occur if two vCenters are used one...

AHV clusters with AOS versions 5.20.4+ (LTS) or 6.1.1+ (STS) shown as unavailable in Veeam Console

Challenge If the machine where Veeam Backup & Replication is installed is running Windows Server 2012R2 OS or earlier, and the Nutanix AHV Clusters are running AOS versions 5.20.4+ LTS or 6.1.1+ STS, the following may occur: Nutanix Clusters that were previously added to Veeam Backup & Replicatio...

Features of Veeam Backup & Replication may not function when the Veeam Backup Service is run as a user that is not assigned the "Veeam Backup Administrator" role

Article Applicability This article is specific to a situation in which the Veeam Backup Service is set with a "Log On As" other than Local System. Challenge When the Veeam Backup Service is set to use a specific user as the service's "Log On" account, some features may not function correctly if...

Veeam Service Provider Console v5 Patch 4

More Recent Version Available Please find the latest version of Veeam Service Provider Console here: https://www.veeam.com/service-providers-download.html Requirements Please confirm you are running version 5.0.0.6726 or later before installing Patch 4. You can check this by logging in to the...

Release Information for Veeam Backup for Nutanix AHV 3.0

This version is superseded by Veeam Backup for Nutanix AHV 3a Requirements Be sure to review the upgrade checklist section of the User Guide document closely before upgrading, as Veeam Backup for Nutanix AHV 3.0 only supports integration with Veeam Backup & Replication version 11a. You can check...

Retention type changes after re-adding an object storage repository

Challenge When a repository extended to object storage that was initially created using PowerShell or REST API is removed from Veeam Backup for Microsoft 365 and then added back, the retention type changes to item-level. This change in retention type after such a repository has been re-added may...

Backup repository upgrade fails after upgrading to v5

Challenge A local backup repository fails to upgrade after upgrading to Veeam Backup for Microsoft 365 5.0 version 5.0.0.1061. Cause In case when the Team Chat folder has been protected with the earlier version of Veeam Backup for Microsoft 365, a backup repository may contain items with several...

Release Information for Veeam Backup for Microsoft 365 5.0

Requirements Please confirm that you are running one of the following versions of Veeam Backup for Microsoft 365 before upgrading to 5.0: 3.0 build 3.0.0.422 4.0 build 4.0.0.1345 4a builds 4.0.0.1553, 4.0.0.1580 4b builds 4.0.0.2516, 4.0.0.2549 4c builds 4.0.1.519, 4.0.1.531, 4.0.1.545 You can...

Release Information for Veeam Backup for AWS v3

Requirements Please confirm that you are running version v2 build 2.0.0.600 or later prior to upgrading. You can check your build number under Configuration | Support Information | About | Server version by clicking the gear icon at the top-right corner of the main menu in Veeam Backup for AWS...

Veeam Backup for Google Cloud Recovery/Migration Procedure

Challenge This article explains how to recover Veeam Backup for Google Cloud data in case the backup appliance gets corrupted and requires the data to be moved to a new instance as the data contains important information about restore points, repositories, policies and so on. Solution Recommended...

Support for Nutanix Clusters on AWS

Nutanix Clusters on AWS runs the core Nutanix HCI stack including Nutanix AOS, AHV, and Prism, along with all Nutanix products and services on bare metal EC2 instances on Amazon Web Services AWS. This allows you to migrate or extend applications from private clouds to AWS easily. Nutanix Clusters...

Veeam Service Provider Console v4 Patch 2

Challenge Veeam Service Provider Console v4 Patch 2. Cause Please confirm you are running version 4.0.0.4877 or later before installing this Patch 2. You can check this by logging in to the backup portal and navigating to Configuration Support Information tab. After upgrading, your server build...

How to Create Custom Worker Instance IAM Role

The Worker IAM role is used to launch worker instances for backup and restore using S3 repository...

Advanced transport modes (HotAdd and SAN) fail over to NBD mode

Challenge Advanced transport modes Virtual Appliance HotAdd or Direct Storage access may not work, failing over to the NBD transport mode instead. If you are seeing error "Cannot use advanced transport modes, failing over to NBD " you should check the HotAdd attacher agent log default location -...

Unable to add Nutanix AHV cluster due to empty credentials list

Challenge When trying to add a new Nutanix AHV cluster to the Veeam Backup & Replication infrastructure, the operation cannot be finished due to an empty list of credentials. Newly added credentials are not displayed in the Credentials list, and the wizard does not allow adding a new cluster...