VM network completely interrupted - all extensions have failed.

Subject: VM Agent Status Not Ready - Comprehensive Troubleshooting Completed

Dear Microsoft Support Engineer,

Thank you for your detailed troubleshooting steps. I have systematically tested all 7 steps you provided, and I would like to report our findings:

Step 1: VM Power/Provisioning Status ✅

Status: VM is in "Running" state

ProvisioningState: "Updating" (extensions stuck)

Action Taken: Multiple restarts and redeployments performed

Step 2: VM Agent Status ❌

Azure Portal Status: "VM Agent status: Not ready"

Action Taken: Verified agent service is running but files are missing

Step 3: Agent Services on OS ⚠️

Service Status: WindowsAzureGuestAgent service shows "Running"

Critical Issue: Test-Path "C:\WindowsAzure\GuestAgent" returns False

Logs Checked: C:\WindowsAzure\Logs\ directory is empty

Action Taken: Deleted and attempted to reinstall agent service

Step 4: Network/WireServer Connectivity ❌ CRITICAL ISSUE

WireServer Test: ping 168.63.129.16 - 100% packet loss

General Connectivity: ping 8.8.8.8 - 100% packet loss

DNS Resolution: nslookup go.microsoft.com - Failed

Network Configuration: All netsh commands fail with "Element not found"

Action Taken:

Reset Winsock and IP stack

Restarted network services

Manual IP configuration attempts

All network repair attempts failed

Step 5: Extension States ❌

All Extensions: Stuck in "Updating" or "Failed" state

Action Taken: Attempted to delete extensions (failed when VM stopped)

Logs: Extension logs inaccessible due to network issues

Step 6: Reapply/Redeploy/Restart ✅

Actions Taken: Multiple VM restarts, redeployments, and reapply operations

Result: Extensions remain stuck in "Updating" state

Step 7: Install/Update Agent ❌

Download Attempt: Invoke-WebRequest fails with "The remote name could not be resolved"

Root Cause: Complete network connectivity loss prevents agent download

Critical Finding: Complete Network Isolation

The VM is completely isolated from Azure infrastructure:

Cannot reach WireServer (168.63.129.16)

Cannot resolve DNS

Cannot download any files

Network configuration commands fail

Request for Escalation

This appears to be a platform-level issue requiring:

Azure infrastructure network reset

VM network adapter repair

Platform-level troubleshooting

The standard troubleshooting steps cannot be completed due to complete network isolation within the VM.

VM Details:

Name: meinan

Resource Group: YJT_group

Subscription: f1bdd072-6648-4728-9e01-eec5a85a9082

Region: southcentralus

OS: Windows Server 2016 Datacenter

Please advise on next steps for platform-level resolution.

Solutions step you can try:

 1.      Confirm it’s not a Guest OS issue

          You already confirmed:

                    ·         VM Agent service is running but corrupted/missing files.

                    ·         Logs empty.

                    ·         WireServer unreachable

                    ·         Netsh commands fail

          This rules out normal OS side repair, So the issue is platform-level networking.

 2.      Try Platform-level Recovery options

                  a.      Redeploy the VM

                           Redeploy moves the VM to a new Azure host, keeping the same OS disk, NIC and configurations.

                           In Azure Portal:

                           ·         Go to VM-> Setting-> Redeploy + reapply

                           ·         Select Redeploy

                          This often resets the underlying network adapter and restores connectivity.

                  b.     Reset the NIC

                          ·         In Azure Portal-> VM -> Networking, select the NIC.

                          ·         Detach the existing NIC and attach a new NIC from the same VNet/subnet.

                          ·         Start the VM.

                          ·         If VM boots, reconfigure the IP if needed.

                         c.      Reset VM configuration  (via Azure Support)

                                   If redeploying doesn’t fix it:

                          ·         Request Azure Support to perform a platform-level network reset for the VM.

                          ·         They may need to reinitialize the VM’s host network adapter on Azure fabric.

  3.      Workaround( Data Recovery / Migration)

            If production downtime is critical:

                              I.            Create a new VM in the same region and VNet.

                            II.            Detach the OS disk of the broken VM

                              III.            Attach the OS disk to the new VM as a data disk.

                              IV.            Ecover data/ configurations.

                              V.            If needed, promote this new VM as the replacement.

Summary

    ·         First try : redeploy the VM

    ·         If still failing: Reset NIC/ attach new NIC.

    ·         If still isolated: Open Azure support ticket and request platform-level network reset. 

     ·         As fallback: attach OS disk to a healthy VM to recover data and restore services.

Hope this helps, please let me know if you have any other query.

"Hope you're doing well. We're following up on the ticket. Please let us know whether the issue persists or has been resolved. If the issue has been resolved, kindly mark the response as answered

"Hope you're doing well. We're following up on the thread. Please let us know whether the issue persists or has been resolved. If the issue has been resolved, kindly mark the response as answered