VM Agent is not ready - VM agent not able to connect wire server

Shan Ramachandran 0 Reputation points
2025-08-28T19:41:50.09+00:00

We have a Win VM serving as the domain controller. recently we started to notice Agent status not ready and sometime if this happens, the domain validation failure results in loss of access to the resources, sometime running the network connectivity fails and sometimes it succeeds.

Need some help to troubleshoot it out.

Windows for business | Windows Server | Devices and deployment | Set up, install, or upgrade
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  1. Harry Phan 1,225 Reputation points Independent Advisor
    2025-08-28T20:27:59+00:00

    Dear Shan Ramachandran,

    The “Agent status not ready” condition typically indicates a problem with the VM’s communication layer—often related to the Azure VM Guest Agent. This can impact domain validation, extension operations, and network connectivity. Based on your description, we recommend the following steps:

    Here are Recommended Troubleshooting Actions:

    1. Verify Azure VM Agent Installation and Health Ensure the WindowsAzureGuestAgent and RdAgent services are installed and running. You can check this via services.msc or PowerShell.
    2. Check Network Connectivity to Azure Infrastructure Confirm that the VM can reach the reserved IP 168.63.129.16, which is essential for agent communication. Use Test-NetConnection or ping to verify connectivity.
    3. Review VM Logs for Agent Errors Examine WaAppAgent.log and RdAgent.log for any failures or timeouts. These logs are typically located in C:\WindowsAzure\Logs.
    4. Redeploy or Reinstall the VM Agent (if needed) If the agent is missing or corrupted, you may need to manually reinstall it using the latest MSI package. Instructions are available on Microsoft Learn – Troubleshoot Azure VM Agent issues.
    5. Validate Domain Controller Health Run dcdiag and netdiag to check for domain-related errors. Ensure time synchronization and DNS resolution are functioning correctly.

    If the above response helps answer your question, remember to "Accept Answer" so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

    Best regards,

    Harry Phan

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