ESXi5.1: windows session credentials cannot be used to log in

Hi ,

I am trying to login to ESX host , by checking the use windows session credential but its not working .

I am able to login by explicatlty typing  the credentials - domain\username.

Following things I have already checked.

1. DNS entries are correct
2. PTR Record is already present
3. DNS entries under  /etc/likewise/krb5-affinity.conf is corect with local DNS
4. unable to connect using both ESX DNS name and IP address .

Note : I am able to use this feature to all the hosts in cluster apart from one host .

Thanks in Advance !!..

Shashi