Crystal Report Popup Logon Window On Windows Server 2012 R2 (IIS 8.5)

I have a web application that works so well with Windows 7 (IIS 7.0) and Windows 8 (IIS 8.0). Both Windows 7 and Windows 8 are running SQL Server 2012.

My Problem started when I deployed to Windows Server 2012 R2. Now I m getting a pop-up windows requesting logon information.Server Name,Database Name and User Name are not editable except password textbox.

My Crystal Report version is 13.0.2000.0. And I have installed Crystal for Visual Studio 2012 (CRforVS_13_0_6 ). My Database ( SQL Server 2012) is also installed on the same machine. Both Windows and SQL Authentication are enabled. The same code moved to fresh windows 8 and 7 and everything works fine. Please I need help.

Thanks Danjay