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:
- Launch Microsoft SQL Management Studio.
- 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:
- Click Administration then vCenter Server Settings....
- Click Advanced Settings then scroll down to you find this key:
WebService.Ports.http