Getting error on XVNC for password authentication

I could see below error in logs

[AuthFailure] Either the username was not recognised, or the password was incorrect)

After googling I found vnc server will need to be restarted once password is reset

root@online [~]# /etc/init.d/vncserver-virtuald restart
root@online [~]# /etc/init.d/vncserver-x11-serviced restart

Now VNC work fine