View known issues in Azure Stack HCI 2402 release

Applies to: Azure Stack HCI, version 23H2

This article identifies the critical known issues and their workarounds in Azure Stack HCI 2402 release.

The release notes are continuously updated, and as critical issues requiring a workaround are discovered, they're added. Before you deploy your Azure Stack HCI, carefully review the information contained in the release notes.


This release supports both - new deployments and updates. You must be running version 2311.3 to update to this release.

For more information about the new features in this release, see What's new in 23H2.

Issues for version 2402

This software release maps to software version number 10.2402.0.23.

Release notes for this version include the issues fixed in this release, known issues in this release, and release noted issues carried over from previous versions.

Fixed issues

Here are the issues fixed in this release:

Feature Issue Workaround/Comments
Deployment The first deployment step: Before Cloud Deployment when Deploying via Azure portal can take from 45 minutes to an hour to complete.
Deployment There's a sporadic heartbeat reliability issue in this release due to which the registration encounters the error: HCI registration failed. Error: Arc integration failed. This issue is intermittent. Try rerunning the deployment. For more information, see Rerun the deployment.
Deployment There's an intermittent issue in this release where the Arc integration validation fails with this error: Validator failed. Can't retrieve the dynamic parameters for the cmdlet. PowerShell Gallery is currently unavailable. Please try again later. This issue is intermittent. Try rerunning the deployment. For more information, see Rerun the deployment.
Deployment In some instances, running the Arc registration script doesn't install the mandatory extensions, Azure Edge device Management or Azure Edge Lifecycle Manager. The issue was fixed in this release. The extensions remediate themselves and get into a successful deployment state.
Update When you try to change your AzureStackLCMUserPassword using command: Set-AzureStackLCMUserPassword, you might encounter this error:

Can't find an object with identity: 'object id'*.
There's no known workaround in this release.

Known issues in this release

Here are the known issues in this release:

Feature Issue Workaround/Comments
Repair server In rare instances, the Repair-Server operation fails with the HealthServiceWaitForDriveFW error. In these cases, the old drives from the repaired node aren't removed and new disks are stuck in the maintenance mode. To prevent this issue, make sure that you DO NOT drain the node either via the Windows Admin Center or using the Suspend-ClusterNode -Drain PowerShell cmdlet before you start Repair-Server.
If the issue occurs, contact Microsoft Support for next steps.
Repair server This issue is seen when the single server Azure Stack HCI is updated from 2311 to 2402 and then the Repair-Server is performed. The repair operation fails. Before you repair the single node, follow these steps:
1. Run version 2402 for the ADPrepTool. Follow the steps in Prepare Active Directory. This action is quick and adds the required permissions to the Organizational Unit (OU).
2. Move the computer object from Computers segment to the root OU. Run the following command:
Get-ADComputer <HOSTNAME> | Move-ADObject -TargetPath "<OU path>"
Deployment If you prepare the Active Directory on your own (not using the script and procedure provided by Microsoft), your Active Directory validation could fail with missing Generic All permission. This is due to an issue in the validation check that checks for a dedicated permission entry for msFVE-RecoverInformationobjects – General – Permissions Full control, which is required for BitLocker recovery. Use the Prepare AD script method or if using your own method, make sure to assign the specific permission msFVE-RecoverInformationobjects – General – Permissions Full control.
Deployment There's a rare issue in this release where the DNS record is deleted during the Azure Stack HCI deployment. When that occurs, the following exception is seen:
Type 'PropagatePublicRootCertificate' of Role 'ASCA' raised an exception:<br>The operation on computer 'ASB88RQ22U09' failed: WinRM cannot process the request. The following error occurred while using Kerberos authentication: Cannot find the computer ASB88RQ22U09.local. Verify that the computer exists on the network and that the name provided is spelled correctly at PropagatePublicRootCertificate, C:\NugetStore\Microsoft.AzureStack, at Orchestration.Roles.CertificateAuthority.10.2402.0.14\content\Classes\ASCA\ASCA.psm1: line 38, at C:\CloudDeployment\ECEngine\InvokeInterfaceInternal.psm1: line 127,at Invoke-EceInterfaceInternal, C:\CloudDeployment\ECEngine\InvokeInterfaceInternal.psm1: line 123.
Check the DNS server to see if any DNS records of the cluster nodes are missing. Apply the following mitigation on the nodes where its DNS record is missing.

Restart the DNS client service. Open a PowerShell session and run the following cmdlet on the affected node:
Taskkill /f /fi "SERVICES eq dnscache"
Deployment In this release, there's a remote task failure on a multi-node deployment that results in the following exception:
ECE RemoteTask orchestration failure with ASRR1N42R01U31 (node pingable - True): A WebException occurred while sending a RestRequest. WebException.Status: ConnectFailure on [https://<URL>](https://<URL>).
The mitigation is to restart the ECE agent on the affected node. On your server, open a PowerShell session and run the following command:
Restart-Service ECEAgent.
Updates In this release, there's a health check issue owing to which a single server Azure Stack HCI can't be updated from the Azure portal. Update your Azure Stack HCI via PowerShell.
Add/Repair server In this release, when adding or repairing a server, a failure is seen when the software load balancer or network controller VM certificates are being copied from the existing nodes. The failure is because these certificates weren't generated during the deployment/update. There's no workaround in this release. If you encounter this issue, contact Microsoft Support to determine next steps.
Deployment In this release, there's a transient issue resulting in the deployment failure with the following exception:
Type 'SyncDiagnosticLevel' of Role 'ObservabilityConfig' raised an exception:*<br>*Syncing Diagnostic Level failed with error: The Diagnostic Level does not match. Portal was not set to Enhanced, instead is Basic.
As this is a transient issue, retrying the deployment should fix this. For more information, see how to Rerun the deployment.
Deployment In this release, there's an issue with the Secrets URI/location field. This is a required field that is marked Not mandatory and results in the Azure Resource Manager template deployment failures. Use the sample parameters file in the Deploy Azure Stack HCI, version 23H2 via Azure Resource Manager template to ensure that all the inputs are provided in the required format and then try the deployment.
If there's a failed deployment, you must also clean up the following resources before you Rerun the deployment:
1. Delete C:\EceStore.
2. Delete C:\CloudDeployment.
3. Delete C:\nugetstore.
4. Remove-Item HKLM:\Software\Microsoft\LCMAzureStackStampInformation.
Security For new deployments, Secured-core capable devices won't have Dynamic Root of Measurement (DRTM) enabled by default. If you try to enable (DRTM) using the Enable-AzSSecurity cmdlet, you'll see an error that DRTM setting isn't supported in the current release.
Microsoft recommends defense in depth, and UEFI Secure Boot still protects the components in the Static Root of Trust (SRT) boot chain by ensuring that they're loaded only when they're signed and verified.
DRTM is not supported in this release.
Networking An environment check fails when a proxy server is used. By design, the bypass list is different for winhttp and wininet, which causes the validation check to fail. Follow these workaround steps:

1. Clear the proxy bypass list prior to the health check and before starting the deployment or the update.

2. After passing the check, wait for the deployment or update to fail.

3. Set your proxy bypass list again.

Known issues from previous releases

Here are the known issues from previous releases:

Feature Issue Workaround
Arc VM management Deployment or update of Arc Resource Bridge could fail when the automatically generated temporary SPN secret during this operation, starts with a hyphen. Retry the deployment/update. The retry should regenerate the SPN secret and the operation will likely succeed.
Arc VM management Arc Extensions on Arc VMs stay in "Creating" state indefinitely. Sign in to the VM, open a command prompt, and type the following:
notepad C:\ProgramData\AzureConnectedMachineAgent\Config\agentconfig.json
sudo vi /var/opt/azcmagent/agentconfig.json
Next, find the resourcename property. Delete the GUID that is appended to the end of the resource name, so this property matches the name of the VM. Then restart the VM.
Arc VM management When a new server is added to an Azure Stack HCI cluster, storage path isn't created automatically for the newly created volume. You can manually create a storage path for any new volumes. For more information, see Create a storage path.
Arc VM management Restart of Arc VM operation completes after approximately 20 minutes although the VM itself restarts in about a minute. There's no known workaround in this release.
Arc VM management In some instances, the status of the logical network shows as Failed in Azure portal. This occurs when you try to delete the logical network without first deleting any resources such as network interfaces associated with that logical network.
You should still be able to create resources on this logical network. The status is misleading in this instance.
If the status of this logical network was Succeeded at the time when this network was provisioned, then you can continue to create resources on this network.
Arc VM management In this release, when you update a VM with a data disk attached to it using the Azure CLI, the operation fails with the following error message:
Couldn't find a virtual hard disk with the name.
Use the Azure portal for all the VM update operations. For more information, see Manage Arc VMs and Manage Arc VM resources.
Update In rare instances, you may encounter this error while updating your Azure Stack HCI: Type 'UpdateArbAndExtensions' of Role 'MocArb' raised an exception: Exception Upgrading ARB and Extension in step [UpgradeArbAndExtensions :Get-ArcHciConfig] UpgradeArb: Invalid applianceyaml = [C:\AksHci\hci-appliance.yaml]. If you see this issue, contact Microsoft Support to assist you with the next steps.
Networking There's an infrequent DNS client issue in this release that causes the deployment to fail on a two-node cluster with a DNS resolution error: A WebException occurred while sending a RestRequest. WebException.Status: NameResolutionFailure. As a result of the bug, the DNS record of the second node is deleted soon after it's created resulting in a DNS error. Restart the server. This operation registers the DNS record, which prevents it from getting deleted.
Azure portal In some instances, the Azure portal might take a while to update and the view might not be current. You might need to wait for 30 minutes or more to see the updated view.
Arc VM management Deleting a network interface on an Arc VM from Azure portal doesn't work in this release. Use the Azure CLI to first remove the network interface and then delete it. For more information, see Remove the network interface and see Delete the network interface.
Arc VM management When you create a disk or a network interface in this release with underscore in the name, the operation fails. Make sure to not use underscore in the names for disks or network interfaces.
Deployment Providing the OU name in an incorrect syntax isn't detected in the Azure portal. The incorrect syntax includes unsupported characters such as &,",',<,>. The incorrect syntax is detected at a later step during cluster validation. Make sure that OU path syntax is correct and does not include unsupported characters.
Deployment Deployments via Azure Resource Manager time out after 2 hours. Deployments that exceed 2 hours show up as failed in the resource group though the cluster is successfully created. To monitor the deployment in the Azure portal, go to the Azure Stack HCI cluster resource and then go to new Deployments entry.
Azure Site Recovery Azure Site Recovery can't be installed on an Azure Stack HCI cluster in this release. There's no known workaround in this release.
Update When updating the Azure Stack HCI cluster via the Azure Update Manager, the update progress and results may not be visible in the Azure portal. To work around this issue, on each cluster node, add the following registry key (no value needed):

New-Item -Path "HKLM:\SYSTEM\CurrentControlSet\Services\HciCloudManagementSvc\Parameters" -force

Then on one of the cluster nodes, restart the Cloud Management cluster group.

Stop-ClusterGroup "Cloud Management"

Start-ClusterGroup "Cloud Management"

This won't fully remediate the issue as the progress details may still not be displayed for a duration of the update process. To get the latest update details, you can Retrieve the update progress with PowerShell.
Update In this release, if you run the Test-CauRun cmdlet prior to actually applying the 2311.2 update, you see an error message regarding a missing firewall rule to remotely shut down the Azure Stack HCI system. No action is required on your part as the missing rule is automatically created when 2311.2 updates are applied.

When applying future updates, make sure to run the Test-EnvironmentReadiness cmdlet instead of Test-CauRun. For more information, see Step 2: Optionally validate system health.
Updates In rare instances, if a failed update is stuck in an In progress state in Azure Update Manager, the Try again button is disabled. To resume the update, run the following PowerShell command:
Updates In some cases, SolutionUpdate commands could fail if run after the Send-DiagnosticData command. Make sure to close the PowerShell session used for Send-DiagnosticData. Open a new PowerShell session and use it for SolutionUpdate commands.
Updates In rare instances, when applying an update from 2311.0.24 to 2311.2.4, cluster status reports In Progress instead of expected Failed to update. Retry the update. If the issue persists, contact Microsoft Support.
Arc VM management If the resource group used to deploy an Arc VM on your Azure Stack HCI has an underscore in the name, the guest agent installation fails. As a result, you won't be able to enable guest management. Make sure that there are no underscores in the resource groups used to deploy Arc VMs.
Cluster aware updating Resume node operation failed to resume node. This is a transient issue and could resolve on its own. Wait for a few minutes and retry the operation. If the issue persists, contact Microsoft Support.
Cluster aware updating Suspend node operation was stuck for greater than 90 minutes. This is a transient issue and could resolve on its own. Wait for a few minutes and retry the operation. If the issue persists, contact Microsoft Support.

Next steps