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Active Directory – The Kerberos client received a KRB_AP_ERR_MODIFIED error – RC4 hardening misconfiguration
Intro I was working together with Microsoft support on a customers Active Directory, where users was unable to authenticate towards DFS namespaces, applications and SQL server services within the domain. the domain span across 5 domain controllers throughout the world. the customer first saw the issue then introducing new domain controllers to the domain, where…
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Azure Local – Windows Admin Center (Preview) – Azure Portal – Howto and troubleshooting
Microsoft have a complete guide on how to deploy Windows Admin Center from Azure Portal (still in preview), to Azure Local stack. It can be found here: Manage Azure Local clusters with Windows Admin Center in Azure (preview) | Microsoft Learn 24-05-2025: Microsoft issues statement that versions from 0.49.0.0 to newest 0.54.0.0 does not work…
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Azure Local – Network ATC – Stuck in validation mode
Source article: https://learn.microsoft.com/en-us/powershell/module/networkatc/update-networkatc?view=windowsserver2025-ps I have worked with a customer that was upgraded from Azure Local 22H2 to 23H2. After upgrade and after configuring Network ATC Intents, we could not continue to solution upgrade because Network ATC Intents was switching between configured/success and validating, for both compute_management and storage intents. After customer worked with Microsoft support,…
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Azure Local – Create Network ATC Intent
To create a Network ATC Intent via PowerShell (either for the first time, doing upgrade from 22H2 til 23H2 where Network ATC was not configured, or doing troubleshooting), we can create it with PowerShell. Prepare If the Intent is already present, make sure to remove it from the node first. If you not want to…
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Azure Local – Lenovo – Firmware and driver patching
Intro It is VERY important to keep physical nodes in an Azure Local Stack up to date with the latest firmware and driver patches. Failing to do so, can lead to network and storage issues within the stack. On Lenovo servers, all nodes within the stack can be updated using Windows Admin Center and the…
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Azure Local – Recreate VM switch for Network ATC Intent
This article contains commands for recreating a VM switch with VM Switch Embedded Team for the Converged Switch for management and compute. This assumes that management and compute is combined in the same Network ATC Intent on your cluster. Normally this is not something you would do, but if you see issues or errors like…
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