Installing vCenter Update Manager fails with the error: The vCenter Server entered is not reachable

Products

• VMware vCenter Server

Issue/Introduction

This article provides steps to resolve the issue when Installing vCenter Update Manager fails with the The vCenter Server entered is not reachable error.


Symptoms:

• Installing vCenter Update Manager fails
• The Update Manager installer fails to contact vCenter Server
• You see the error:
  
  The vCenter Server entered is not reachable
  
  
• vCenter Server is using a custom HTTP port

Environment

VMware vCenter Update Manager 5.0.x
VMware vCenter Update Manager 4.1.x
VMware vCenter Update Manager 5.5.x
VMware vCenter Update Manager 5.1.x
VMware vCenter Update Manager 4.0.x

Cause

This issue occurs if you enter an incorrect HTTP port number for vCenter Server during the Update Manager installation. If vCenter Server issue a custom HTTP port, the Update Manager installer requires you to enter the correct HTTP port when connecting to vCenter Server.

Resolution

To resolve this issue, ensure that you enter the correct HTTP port number for vCenter Server during the Update Manager installation.

The custom HTTP port number is stored in the VPX_PARAMETER table of the vCenter Server database. To get the correct port number:

1. Launch Microsoft SQL Management Studio.
2. Run this query against the vCenter Server database:
   
   SELECT VALUE FROM VPX_PARAMETER WHERE NAME = 'WebService.Ports.http';

Alternatively, you can check the current port setting when connected to vCenter Server with a vSphere Client:

1. Click Administration then vCenter Server Settings....
2. Click Advanced Settings then scroll down to you find this key:
   
   WebService.Ports.http