Unable to open HFM application using workspace

653830

I am facing the follwing error after reconfiguration of EPMA from server IP address to server name.

Whenever I try to open the sample application Comma from workspace I get the following error
*"There was some communication error. Response is : http://svctag-hdwft1s:19000/hfm/GlobalWorkspaceNav/bpm/modules/com/hyperion/hfm/web/appcontainer/Adf.asp"*

My HFM is working fine.
"hfm" displayed after i explore the web http://localhost/hfm from IIS

After reading various support links for the above error I tried the following
1. Provisioning done sucessfully for admin as well as other admin users

2. Tried to register it using classic administration. Got the following message
This is a BPMA application. The functionality must be done through BPMA.

3. Reregister from Application Library -

I am able to work with the dimension library and Application Library.
I am able to deploy the application but I am not able to open it.

Please assit on this.