Problem:

After repointing to a new SSO server (see http://www.jordansphere.co.uk/split-sso-server-in-vsphere-5-5/ ) the webclient was stil re-directing to the old login screen (for the old SSO server).

 

Resolution:

Edit the following file: C:\ProgramData\VMware\VMware VirtualCenter\proxy.xml and change the hostName value from old to new – as shown in the example below:

<e id="21">
 <_type>vim.ProxyService.RedirectSpec</_type>
 <accessMode>httpAndHttps</accessMode>
 <hostName> sso02.jordansphere.co.uk </hostName>
 <port>9443</port>
 <redirectType>permanent</redirectType>
 <serverNamespace>/vsphere-client</serverNamespace>
</e>

When saved restart the VIrutalCenter server