Title: SDDC Manager tasks remain in queued state or timeout due to connectivity loss

Products

• VMware SDDC Manager / VCF Installer

Issue/Introduction

Tasks within the SDDC Manager UI, such as host removal or cluster expansion, remain in a "Queued" state indefinitely and eventually fail with a timeout error. This behavior occurs when the SDDC Manager task orchestrator cannot communicate with the underlying management components.

• Tasks in the SDDC Manager Dashboard → Tasks view do not progress beyond Queued.
• Attempts to decommission a host or cluster result in a timeout failure.
• SSH connectivity to the SDDC Manager appliance is intermittent or failing.

Environment

• VMware Cloud Foundation (VCF) 9.x
• SDDC Manager

Cause

Management plane or connectivity disruption to the SDDC Manager appliance prevents the orchestration engine from initiating tasks.
If the SSH service is stopped or the management network is unreachable, workflows cannot transition from the queue to the execution phase.

Resolution

Restore management plane connectivity and verify service status on the SDDC Manager appliance:

1. Verify the network path between the management workstation and the SDDC Manager appliance.
2. Log in to the SDDC Manager appliance console via vCenter.
3. Check the status of the SSH service:

   # systemctl status sshd

4. If the service is stopped, start it:

   # systemctl start sshd

5. Verify that management services are running:

   # /opt/vmware/vcf/operationsmanager/scripts/cli/sddcmanager_status_services.sh

6. Monitor the SDDC Manager UI to confirm that queued tasks begin to trigger.

If the issue persists despite these steps, contact Broadcom Support for further investigation of the domainmanager logs.