Error "Failed to connect to depot" when doing scan task as part of adding ESXi host to a cluster in SDDC Manager on VCF 9.1.0.0

Products

• VMware SDDC Manager / VCF Installer

Issue/Introduction

• This SDDC Manager UI error is observed:

HSM 'com.dpc.hsm.c####' reported the following on cluster scan task : 'Start to scan on hosts ####. The SCAN task on host #### is complete.'.  
Failed to connect to depot: 'URL: 'http://vcenter_fqdn:9084/vum/repository/hostupdate/__micro-depot__vendor-vmw__metadata-###__index__.xml' Error: '<urlopen error [Errno -2] Name or service not known>', URL: 'http://vcenter_fqdn:9084/vum/repository/hostupdate/__micro-depot__vendor-DEL__metadata-####__index__.xml' Error: '<urlopen error [Errno -2] Name or service not known>', URL: 'http://vcenter_fqdn:9084/vum/repository/hostupdate/__micro-depot__vendor-vxr__metadata-####__index__.xml' Error: '<urlopen error [Errno -2] Name or service not known>''. Please refer to KB 313508 for more details.

Message: Applying personality to cluster domain-c#### failed with error: ApplyStatus (com.vmware.esx.settings.clusters.software.apply_status) => { status = SKIPPED, progress = <null>, startTime = YYY-MM-DDThh:mm:ss.sssZ[GMT], endTime = YYYY-MM-DDThh:mm:ss.sssZ[GMT], notifications = Notifications (com.vmware.esx.settings.notifications) => { info = <null>, warnings = <null>, errors = <null> } }  

• There is no ping reply to a ping from SDDC Manager to the ESXi hosts management IP address

Environment

VCF 9.1.0.0

Cause

• No network connectivity between ESXi hosts and SDDC Manager.
• A review of the ESXi management network configuration (per Configuring VMware ESXi Management Network) on the ESXi host confirmed that the default gateway field was blank.

Resolution

1. Configure a default gateway on the ESXi hosts per Configuring VMware ESXi Management Network.
2. Once a default gateway was configured on the ESXi hosts, retry the workflow.
3. The workflow is expected to complete successfully.