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Saturday, January 12, 2019

Hyper-V Live Migration does not work, how to fix error 0x8007052E

If you have a Hyper-V cluster and Live Migration does not work and you are receiving error "Failed to register cluster name in the local user groups: The user name or password is incorrect. (0x8007052E). Hyper-V will retry the operation." in Hyper-V-High-Availability event log, then most likely you will need to reset Failover Cluster AD account password (sometimes als called CNO - Cluster Name Object).

To reset CNO password:

  1. Open Failover Cluster console.
  2. In the left pane click Cluster Name
  3. In the "Cluster Core Resources" section select server name resource, right-click it and select Take Offline. VMs will not stop.
  4. The on server name resource choose More Actions -> Repair, this will reset CNO password
  5. Bring online server name resource.
Live Migration should work again now.

While troubleshooting the problem you can generate cluster log with Get-ClusterLog Powershell command, which will generate a text based log file C:\Windows\Cluster\Reports\cluster.log.
During live migration we would see there that CLUSTERNAME$ account cannot authentication because of wrong password.

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