RE: when i try auth 2.0 using credentials according API i am facing issue.
Hi nadeem,
If you would like to disable the IE Enhanced Security, follow the instructions below.
On the Windows Server 2012 server desktop, locate and start the Server Manager.
Select Local Server (The server you are currently on and the one that needs IE Enhanced Security disabled)
On the right side of the Server Manager, you will find the IE Enhanced Security Configuration Setting. (The default is On)
You have two settings that can be disabled, one only affects the Administrators and the other all users. Make your selection to Off for Administrators, Users or both.
www.limestonenetworks.com/.../how_do_i_disable_internet_explorer_enhanced_security.html
If you don't want disable IE Enhanced Security, the use a browser on another machine which has access to your server.