Error MSIS7007: The requested relying party 'http: //xxx.xxx.xxx/Trust' is unspecified or unsupported

Hi,

I have installed a Geneva server on Windows 2008 based Virtual machine (Let’s call it a.geneva).  I have also made a relying party application and successfully get security tokens and authenticated from Geneva server (a.genava). This scenario is perfectly working fine.

Now I am setting up another scenario in which I am trying to make use of another organization (Identity Provider) so a user can sign-in with another Identity Provider, So I have created another Windows 2008 virtual machine (for another organization). I have also installed and configured Geneva server on it.  Let’s call it b.geneva

I have configured a.geneva to issue tokens to my test site (Relying Party).
I have configured a.geneva to accept tokens from b.geneva. So I have added b.geneva as Identity Provider on a.geneva.
I have configured b.geneva to federate and Issue tokens to a.geneva.  So I have configured a.geneva as relying party on b.geneva. I have configured necessary claims on both Geneva servers.

When I am running my relying party application after entering username and password for b.geneva machine I am getting this error -->

MSIS7007: The requested relying party 'http: //a.geneva/Trust' is unspecified or unsupported. If a relying party was specified, it is possible that you do not have permission to access the relying party. Contact your administrator for details.

Thanks in advance

Lovenish