SSH connection through putty gives Access Denied error

Solution for the "Access Denied" error message when connecting to a remote box through putty even though the remote machine accepts your login credentials & let's you in:

In Putty Configuration for that session:

SSH-AUTH-GSSAPI
Uncheck both GSSAPI boxes

Source: http://centos.org/modules/newbb/viewtopic.php?topic_id=34022&forum=59&post_id=146171#forumpost146171