what settings required for quick par upload in NWDS ?
I tried exactly what you said,First i tried deploying by giving password and it was working fine,then i tried by not giving password and i got the exact error that you are getting,So now do just one thing,
When you are deploying PAR file, a pop-up will come asking for Configure server settings,In this you gave host(IP of portal),port etc. right,
You put your alias as 19x.xxx.xxx.xx right,
login = Administrator
but you are not putting the password, so just click on password filed that is present on that screen,put your password and try now,it has to work
Also in URL you have specified look j_password=null, this means only thing you are missing is password