"No Healthy Upstream" seen under updates tab in vCenter for cluster

Products

• VMware vSphere ESXi

Issue/Introduction

In VMware vCenter, under the Updates tab for a specific cluster, the message "No healthy upstream"  is displayed. This issue prevents vCenter from displaying update status or managing update configurations for the cluster. Users may experience difficulties in initiating or applying updates for ESXi hosts within the affected cluster.

We might also see the following error when trying to access Updates tab,  "Problem occurred while connecting to the Life Cycle Manager server."

 

 

Environment

VMware vCenter Server 7.x

VMware vCenter Server 8.x

Cause

The "No healthy upstream" message typically indicates a connectivity issue between vCenter Server and the update sources (usually the VMware patch repository or internal update servers).

This is commonly caused by a Lifecycle Manager backend service hang or a database connectivity loss, and can stem from one or more of the following:

1. Network connectivity issues — vCenter may be unable to reach the update source due to firewall restrictions, DNS resolution issues, or network misconfigurations.
2. Proxy server misconfiguration — If a proxy is required to access external resources, incorrect proxy settings can result in failed connections to the VMware update repository.
3. vSphere Lifecycle Manager (vLCM) issues — vLCM may be unable to communicate properly with the update servers, or the update server itself may be unresponsive or experiencing downtime.

 

 

Resolution

Restart of all the vCenter services at once fixed the issue.

1. Login to vCenter putty using root credentials.

2. To restart all the services on the vCenter use the below command :

service-control --stop --all && service-control --start --all