Unable to complete VCF deployment as compute manager fails to register with NSX.
Article ID: 424640
Updated On:
Products
Issue/Introduction
During a new VMware Cloud Foundation (VCF) deployment, the SDDC Manager workflow fails during the task to register a Compute Manager (vCenter Server) with VMware NSX.
The following symptoms are observed:
- The SDDC Manager task "Register Compute Manager" fails with an error indicating a conflict or registration failure.
- Manual inspection of the NSX Manager UI under System > Fabric > Compute Managers shows that the same Compute Manager already exists.
- Attempts to retry the SDDC workflow continue to fail at the same stage.
Environment
VMware NSX
Cause
The registration failure is caused by a duplicate registration attempt.
In this scenario, the vCenter Server (Compute Manager) had been manually registered within the NSX Manager UI prior to triggering the SDDC Manager workflow.
Since Compute Manager cannot be registered with the same NSX instance more than once, the SDDC Manager API call to register the vCenter is rejected by NSX due to the existing conflict.
Resolution
This issue is resolved by removing the pre-existing, manual registration to allow the SDDC Manager to manage the lifecycle of the connection.
1.Log in to the NSX Manager UI.
2.Navigate to System > Fabric > Compute Managers.
3.Identify the Compute Manager that was registered manually (this will match the vCenter FQDN/IP being used in the SDDC workflow).
4.Select the Compute Manager and click Delete.
Note: Ensure no other active transport node configurations depend on this specific manual registration before deleting.
5.Once the manual entry is removed, return to SDDC Manager.
6.Restart the failed task or the workflow. The SDDC Manager will now be able to register the Compute Manager successfully.
Additional Information
If you are contacting Broadcom support about this issue, please provide the following:
- NSX Manager support bundles.
- SDDC Manager support bundles.
- Text of any error messages seen in the SDDC Manager "Tasks" view or NSX UI.
Handling Log Bundles for offline review with Broadcom support:
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