There was an error setting private property 'RequireKerberos' to value '1' for resource 'SQL Network Name (SERVERNAME)'. Error: Value

Hi, 

I am trying to setup sql cluster on 2008 R2 Machine and its falling with the below error message.

There was an error setting private property 'RequireKerberos' to value '1' for resource 'SQL Network Name (SERVERNAME)'.  Error: Value

Any idea on this error message,please let me know if you need any more info