Had to disable GSSAPIAuthentication in /etc/sshd/sshd_configfile. This worked for me too as shown below.
grep $catGSSA /etc/ssh/sshd_config | grep GSSA
# Ciphers, MACs, KexAlgoritms and GSSAPIKexAlgorithsm will not have any
# GSSAPI options
*GSSAPIAuthenticationGSSAPIAuthentication no*no