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  1. OpenShift Bugs
  2. OCPBUGS-51179

SSH Connectivity Issue Blocking Windows Node Scaling

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      Description of problem:

      There is an SSH connectivity issue affecting Windows nodes on Azure 2019, which might be the root cause (RCA) for test failures.
      When attempting to scale up a Windows MachineSet, the new instance fails to be configured due to SSH connectivity issues.

      Version-Release number of selected component (if applicable):

          
      Cloud Provider: Azure
      OS: Windows Server 2019
      OpenShift Version: 4.18.0-0.nightly-2025-02-19-132725
      WMCO Version: 10.18.0

      How reproducible:

          100%

      Steps to Reproduce:

      1.Run the following command to scale the Windows MachineSet
       oc scale machineset windows --replicas=3 -n openshift-machine-api
      
      2.Observe that the new Windows node fails to be configured.  

      Actual results:

      The Windows instance fails to set up due to SSH connectivity issues.
      Error log:
      "error":"unable to configure instance windows-kfp26: failed to create new nodeconfig: 
      error instantiating Windows instance from VM: unable to setup VM 10.0.128.7 sshConnectivity: 
      error instantiating SSH client: unable to connect to Windows VM 10.0.128.7: timed out waiting for the condition"

      Expected results:

          The Windows node should be configured successfully after scaling.
      SSH connectivity should be established without timeout issues.

      Additional info:

      This issue blocks the scaling of Windows nodes, which could impact test automation and production workloads. Happens on both azure 2019 and 2022, NOT on nutanix or AWS-Proxy

      
      

      wmco and must-gather log:

      https://drive.google.com/drive/folders/15bx4p0annHEJqvwqCmVPn9tiwALPtdVP

       

              rh-ee-mankulka Mansi Kulkarni
              rhn-support-weinliu Weinan Liu
              None
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              Weinan Liu Weinan Liu
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                Created:
                Updated:
                Resolved: