RSS Feeds in Sharepoint 2010

Hi, I am trying to include RSS Feeds in my Team site. But i am not able to do so and i get the error message like

"The requested RSS feed could not be displayed. Please verify the settings and url for this feed. If this problem persists, please contact your administrator."

Should i enable Kerberos as mentioned in many other websites? I am not for changing settings in my server. Please do help me if there are any other ways to proceed with this. I dont see any error messages relating to this in Event Viewer.