How to fix the ASR registration issue for Hyper-V cluster nodes

Question

I was trying to configure the ASR on Hyper-V cluster node, but its failing while registering and end up with the error,

Answer 1

Hi Ranjitha S
Welcome to the Microsoft Q&A Platform! Thank you for asking your question here.

The error you are facing while registering the Hyper-V cluster nodes for Azure Site Recovery (ASR) could be due to various reasons such as network connectivity issues, firewall settings, or incorrect configuration settings. Here you can follow to troubleshoot steps and fix the issue:

Check network connectivity: Ensure that the Hyper-V cluster nodes have network connectivity to the internet and Azure. You can use tools such as ping or telnet to test the connectivity.

Check firewall settings: Ensure that the required ports are open on the firewall for ASR registration. The required ports are TCP 443 and 9443. You can refer to the Azure Site Recovery documentation for more details on firewall settings.

Check configuration settings: Ensure that the Hyper-V cluster nodes are configured correctly for ASR registration. You can refer to the Azure Site Recovery documentation for the required configuration settings.

Check ASR registration logs: Check the ASR registration logs on the Hyper-V cluster nodes to identify the root cause of the issue. The logs are located in the following directory: C:\ProgramData\ASRLogs.

Retry ASR registration: If the issue persists, you can try to unregister and re-register the Hyper-V cluster nodes for ASR. You can use the following PowerShell cmdlets to unregister and re-register the nodes:

To unregister the nodes: Unregister-AzSiteRecoveryServer -ServerType HyperVSite -ServerName <ServerName>

To re-register the nodes: Register-AzSiteRecoveryServer -ServerType HyperVSite -ServerName <ServerName> -Credentials <AzureCredential>

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