Error: "Connection error: Read timed out" during vCenter Server configuration in Usage Meter

Products

• VMware Usage Meter

Issue/Introduction

Adding a vCenter Server to Usage Meter fails, and the following error is displayed: Connection error for <vCenter FQDN>: Read timed out



Upon reviewing the logs located at /opt/vmware/cloudusagemetering/platform/log/dss_main.log, it is observed that the connection to the affected vCenter Server disconnects immediately after successfully connecting:

[https-jsse-nio-###-####-####-exec-#] o.b.jsse.provider.ProvTlsClient          : [client ## @###] established connection with <vCenter FQDN>:443
[https-jsse-nio-###-####-####-exec-#] o.b.jsse.provider.ProvTlsClient          : [client ## @###] disconnected from <vCenter FQDN>:443 [https-jsse-nio-1###-####-####-exec-#] c.vmware.um.dss.handler.ProductService : Endpoint details :[Endpoint{host='<vCenter FQDN>', port=443, optional=false}] ERROR --- [https-jsse-nio-####-####-####-exec-#] c.v.u.dss.controllers.ProductController : Error during product creation. com.vmware.um.umconnection.err.UmApiException: ERR_PM_WRONG_HOST_NAME Connection error for <vCenter FQDN>: Read timed out

Environment

Usage Meter 9.X

Cause

• Slow DNS Resolution
• An internal network disruption or a firewall configuration abruptly terminating the connection.

Resolution

To resolve this issue, the network path between Usage Meter and the vCenter Server must be investigated:
     1. Engage internal network or firewall administration team.
     2. Verify stable network connectivity and routing between the Usage Meter appliance and the target vCenter Server.
     3. Review firewall policies to ensure that traffic over port 443 (HTTPS) is fully permitted and is not being prematurely dropped or intercepted.