Cannot Connect to VMs in Windows Admin Center
Hi all, I have 1 Server Cluster made up of 3 Server 2022 Hosts on which there is a large number of VMs running on Hyper-V. The typical process for accessing the VMs has been through Windows Admin Center, which is hosted on one of the VMs in the cluster. Around 1 week ago, it was no longer possible to connect to the VMs through Windows Admin Center as an infinite loading screen was presented. Sometimes, the following error shows up in VMConnect: The cluster and servers are still connected to WAC and all the VMs that are expected are present on WAC. Since then, the following things have been attempted: - Restart all servers - Rebuild WAC on Current VM - Build WAC on Fresh VM with the same and different network configuration, using current (2606) and previous (2511) versions of WAC - Build WAC on one of the hosts All these attempts result in the same error as seen before. Has anyone experienced this issue before? Or does anyone have any advice? Thank you in advance!
WAC vMode fails validating SMB
Hi Reviewing vMode and try add a Hyper-V 2025 (non hyperconverged) cluster with a FC SAN. Fails on Validating "SMB port accessibility". Have gone through firewall settings and opened all neccesary ports that i can find mentioned. Even tried without FW turned off without any success so hit the wall now. WAC vMode is installed on a vm running Win2025std and in same domain as the cluster (and hosts) i try to add. Probably some obvious thing i have missed so any suggestions?
No way to import shared connections WAC 2.6.4
hello, reaching out to to see if I am missing anything with the import-wacconnections change in the powershell module. Previous versions i had everything scripted and running smoothly where I could scrape AD for servers and tags and then import as shared connections for other engineers to use. Now, despite being a gateway admin, if I try and import a CSV via the windows admin center gui, I get an error that only personal connections can be imported. if I use powershell, despite providing the generated access token, I get a 403 error. my issued PKI certificate is good, I am a gateway and server admin, I even corrected the errors in the powershell module regarding $credential vs $credentials that copilot spotted Any advice or pointers to push forward?Introducing the VM Conversion tool in Windows Admin Center – Public Preview
As organizations update their infrastructure, a growing number are seeking adaptable, Microsoft-supported solutions that address current requirements while laying the path for future cloud and AI adoption. Azure provides an agile, scalable, cost-effective platform for infrastructure and innovation. Whether by modernizing to cloud technologies like Windows or Linux VMs, containers, Azure VMware Solution or PaaS services, Azure offers a world-class cloud experience. However, we recognize that some organizations must retain workloads on-premises due to data compliance, governance, or other regulatory requirements. For customers wanting to adopt Windows Server and Hyper-V for this use case, we are excited to provide a new option within Windows Admin Center, the VM Conversion tool, in public preview now. This agentless, cost-free tool streamlines the conversion of virtual machines from VMware to Windows Server with Hyper-V, providing customers flexibility with their on-premises virtualization environments while enabling a seamless transition path to Azure when desired. With minimal infrastructure requirements, the tool is particularly beneficial for small and medium-sized organizations. Additionally, with minimal setup time you can download the new VM Conversion tool extension in Windows Admin Center and begin converting virtual machines in under five minutes. Figure 1- VM Conversion tool in Windows Admin Center 🔑Key Features : Agentless, appliance-free discovery After establishing a connection to the virtualization environment, the tool conducts discovery of all virtual machines without requiring agents or appliances and does so in a non-intrusive manner. Minimal downtime The VM Conversion tool enables initial data replication while the source virtual machine remains operational, thereby preventing any interruptions to ongoing applications. After completing this initial replication, on user consent, the source VM is powered down so a subsequent replication pass can capture any data changes made during the first phase. This two-step process ensures that the cutover time from the source to the target VM is minimized. Group servers You can select and migrate up to 10 virtual machines at a time. This reduces manual effort and accelerates the transition to Windows Server. Boot configuration The tool automatically maps BIOS-based virtual machines to Generation 1 and UEFI-based machines to Generation 2, preserving boot configurations and ensuring compatibility. OS agnostic The tool supports conversion of both Linux and Windows guest OS VMs to Windows Server host. Multi-disk VM support Virtual machines that use several virtual hard disks—common in production environments—are fully supported. The operating system, data, and application disks all migrated together, so manual setup is not needed. ⚙️How It Works To ensure a smooth and reliable transition, the tool performs a comprehensive set of built-in prechecks. These checks validate critical VM attributes such as disk types, boot configuration (BIOS or UEFI), destination disk, memory requirements, and several more. By identifying potential issues early, administrators can proactively address them—minimizing the risk of migration failures and reducing downtime during the final cutover. The VM Conversion tool uses change block tracking (CBT) to efficiently replicate data from one virtual disk format to another. During the initial seeding phase, a full copy of the virtual machine is created while it remains online. This minimizes downtime and ensures data integrity. Before the final cutover, a delta replication captures all changes made since the initial copy, ensuring the destination VM is fully up-to-date post conversion to Hyper-V hosts. 🚀Ready to Take the Next Step? The VM Conversion tool is available now in the public feed of Windows Admin Center. You can install it directly from the Extensions settings in Windows Admin Center. To get started, ensure you're running the Windows Admin Center v2 GA release. 📘 For detailed setup instructions and prerequisites, refer to the Public Preview Documentation. 📍 Summary The VM Conversion tool offers a simple, supported path for organizations to streamline VM conversion to Hyper-V virtualization environments. With no added cost and minimal setup, it empowers customers to streamline VM migration and prepare for the cloud at their own pace. Support for Azure Arc-enabled servers is also planned for future releases, further enhancing hybrid management capabilities. We’re continuously evolving the VM Conversion tool based on user feedback. Please continue to share your feedback here and help us prioritize our efforts for future releases. Happy converting!
Windows Admin Center Preview - 2511 English [MSI Corrupt]
When attempting to launch the WindowsAdminCenterPreview_2511.msi, I received an error message (See Below). In addition, when I test the MSI using 7zip, the archive fails to validate. This occurred downloading the installer package twice over a two-day period. My system info is below.How to managed Active Directory using Windows Admin Center
Hello, Can I manage Active Directory using Windows Admin Center ? If yes, please provide the link to give me the documentation on the same. I can see that the Active Directory extension is in preview stage: https://docs.microsoft.com/en-us/windows-server/manage/windows-admin-center/use/manage-servers#active-directory-preview but this document is dated 2019. Any help on the above mentioned is appreciated. Thanks Sushanth AminUnable to get Windows Admin Center v2 (2410) to work at all
So I had the old Windows Admin Center installed and working, using Windows Credentials in my domain. There were a few issues with some of the menus that just would not work like they should, but normal updates to Windows Admin Center would fix it for a little while. They release Windows Admin Center v2 and I do an install of that with the old Windows Admin Center still installed. I am able to use the existing cert and could log into Windows Admin Center and see all the machines. Though after the Windows Admin Center v2 install, always got a ajax 500 error, when trying to connect any machine with Windows Admin Center, even the local machine. This past week, uninstall Windows Admin Center off of the Windows 11 computer that I had been using, both the v2 and v1 versions of it. I then reboot and install the Windows Admin Center v2, using custom setup. Prior to this I went into certificates on the computer and requested a web server cert for this computer using the name of the computer in DNS. My AD CS provided the new cert and I installed it as a computer certificate, under personal. Afterwards I then assigned Network Service full control of the certificate. I selected that certificate during the Windows Admin Center v2 setup and selected Windows authentication, and left everything else as default. Windows Admin Center installs and I launch it, I get to the prompt for username and password from Windows, enter the correct domain credentials and it repeatedly loops through. I went 17 tries and was never able to get into Windows Admin Center. Never got anything saying that I couldn't login, just repeatedly ask for the credentials. So how do I get this blasted thing to work? Uninstall it again, install the Windows Admin Center v1 then the v2 and try and deal with the ajax 500 issue? Nuke the entire computer and install it from a fresh Windows 11 install? Or just give up and always use remote desktop to manage all the servers, which Windows Admin Center v1 helped me half avoid?Register-WACLocalCredSSP: Failed to register CredSSP session configuration.
Every time when install Windows Admin Center (v2), I will get this error when installation accomplished. How to deal with it? Thanks 2025/08/17 15:34:48 Level=INFO ExitCode=0 Message=Enable-WACPSRemoting: Successfully configured PowerShell Remoting. 2025/08/17 15:34:48 Level=INFO ExitCode=0 Message=Remove-WACSelfSignedCertificate: Successfully removed self signed certificate. 2025/08/17 15:34:49 Level=INFO ExitCode=0 Message=Set-WACEndpointFqdn: Added Service FQDN to the hosts file. 2025/08/17 15:34:49 Level=INFO ExitCode=0 Message=Set-WACEndpointFqdn: Updated Endpoint and Service FQDN. 2025/08/17 15:34:52 Level=INFO ExitCode=0 Message=Copy-WACTempUpdaterProcessFiles: Successfully copied Windows Admin Center Updater process files. 2025/08/17 15:34:54 Level=INFO ExitCode=0 Message=Register-WACUpdaterScheduledTask: Successfully registered Windows Admin Center Updater scheduled task. 2025/08/17 15:34:55 Level=INFO ExitCode=0 Message=Unregister-WACService: Successfully unregistered Windows Admin Center service. 2025/08/17 15:34:55 Level=INFO ExitCode=0 Message=Register-WACService: Successfully registered Windows Admin Center service. 2025/08/17 15:34:58 Level=INFO ExitCode=0 Message=Set-WACWinRmTrustedHosts: Successfully set TrustedHosts to *. 2025/08/17 15:34:59 Level=INFO ExitCode=0 Message=Set-WACWinRmOverHttps: Successfully set WAC WinRM over HTTPS configuration. 2025/08/17 15:35:00 Level=INFO ExitCode=0 Message=Set-WACSoftwareUpdateMode: Successfully set WAC software update mode. 2025/08/17 15:35:01 Level=INFO ExitCode=0 Message=Set-WACTelemetryPrivacy: Successfully set WAC telemetry privacy mode. 2025/08/17 15:35:02 Level=INFO ExitCode=0 Message=Set-WACOperationMode: Successfully updated WAC operation mode: Production. 2025/08/17 15:35:02 Level=INFO ExitCode=0 Message=Set-WACLoginMode: Successfully set WAC login mode. 2025/08/17 15:35:03 Level=INFO ExitCode=0 Message=The certificate subject name for the front-end endpoint has been set to admin.compute.microbin.cn. 2025/08/17 15:35:03 Level=INFO ExitCode=0 Message=The certificate subject name for the service endpoint has been set to admin.compute.microbin.cn. 2025/08/17 15:35:03 Level=INFO ExitCode=0 Message=Set-WACCertificateSubjectName: Successfully set WAC certificate subject name. 2025/08/17 15:35:04 Level=INFO ExitCode=0 Message=Set-WACCertificateAcl: Successfully set WAC certificate access control list. 2025/08/17 15:35:05 Level=INFO ExitCode=0 Message=Set-WACHttpsPorts: Successfully set WAC HTTPS ports. 2025/08/17 15:35:06 Level=INFO ExitCode=0 Message=Unregister-WACAccountManagementService: Successfully unregistered Windows Admin Center Account Management service. 2025/08/17 15:35:06 Level=INFO ExitCode=0 Message=Register-WACAccountManagementService: Successfully registered Windows Admin Center Account Management service. 2025/08/17 15:35:07 Level=INFO ExitCode=0 Message=Unregister-WACFirewallRule: Successfully removed WAC firewall rule. 2025/08/17 15:35:07 Level=INFO ExitCode=0 Message=Register-WACFirewallRule: Successfully created WAC firewall rule. 2025/08/17 15:35:09 Level=ERROR ExitCode=1 Message=Register-WACLocalCredSSP: Failed to register CredSSP session configuration. 2025/08/17 15:35:13 Level=INFO ExitCode=0 Message=Initialize-WACDatabase: Successfully initialized database. 2025/08/17 15:35:14 Level=INFO ExitCode=0 Message=Import-WACExistingExtensions: No previously installed extensions to import. 2025/08/17 15:35:14 Level=INFO ExitCode=0 Message=Import-WACExistingPlugins: No previously installed plugins to import. 2025/08/17 15:35:15 Level=INFO ExitCode=0 Message=New-WACEventLog: Successfully created Windows Admin Center event log.
