Here the sshd_config
# Authentication:
LoginGraceTime 120
PermitRootLogin without-password
StrictModes yes
# Change to no to disable tunnelled clear text passwords
#PasswordAuthentication yes
Edit:
replace "PermitRootLogin without-password" by "#PermitRootLogin without-password"
add "PermitRootLogin Yes"
restart ssh service
login with root account on vmware and all work 
Thanks for your help