SSO works with GUI but not with webgui html

Hi Mentor,

We use SSO with Kerberos authentication for SAP GUI (for ECC6.0 ABAP) and it works very well. So while logging through SAP GUI we dont have to provide any passwords.

But the same isnt working for WEBGUI, while when I execute webgui from SICF tcode, and html page prompts for client, username and password, rather I want this to  function as SAP GUI, I believe there is some additional setting that I am missing which needs to be enabled for WEBGUI.

Please check attached screenshot.

Your help would be much appreciated.

Thanks

Ayush