vSphere5.1 Web client not working as the URL is with wrong name

We upgraded our vSphere from 5.0 to 5.1 seems like somewhere in the mid not sure for what reason it took a wrong URL while resgitering.

Now when I'm opening the webclient it's giving me the error as

Could not connect to one or more vCenter Server Systems:

"https://domain1.com.au:443/sdk"

I know the reason, it's coz my vCenter host name is actually "domain2.com.au" & not "domain1.com.au".

Now where do I need to make changes to get my webclient working & connect to my vCenter server i.e. domain2.com.au

Screenshot:-

I've already updated the below attributes with correct server named URL's but it still isn't working. Any help?

1. Navigate to Administration> vCenter Server Settings... > Advanced Settings.
2. Update these attributes with the correct FQDN for vCenter Server:
   
   VirtualCenter.VimApiUrl : https://<vCenter Server FQDN>:443/sdk
   VirtualCenter.VimWebServiceUrl : https://<vCenter ServerFQDN>:8443/vws