EP Site is not working in axapta 4.0 Error in MSDAX


EP Site is not working in ax4.0 this error

Failed to establish connection.


...
Microsoft.Dynamics.BusinessConnectorNet.LogonFailedException

at Microsoft.Dynamics.BusinessConnectorNet.Axapta.Logon(BC_PROXY_ACCOUNT_INFO* pBCProxyAccountInfo, String company, String language, String objectServer, String configuration)

at Microsoft.Dynamics.BusinessConnectorNet.Axapta.LogonUsingBCProxyAccount(_SEC_WINNT_AUTH_IDENTITY_W* pImpersonatedUserAccount, NetworkCredential bcProxyCredentials, String company, String language, String objectServer, String configuration)

at Microsoft.Dynamics.BusinessConnectorNet.Axapta.LogonAs(String user, String domain, NetworkCredential bcProxyCredentials, String company, String language, String objectServer, String configuration)

at Microsoft.Dynamics.WebParts.SessionItem.Init()
 
I got link where some suggession given link is

http://msdn.microsoft.com/en-us/library/aa548699(v=ax.10).aspx

Your suggession as comments are most welcome.