Connection to norton authentication service has failed

I have a few android tablets Galaxy Tab and a Tablets Express Dragon Tab.

I have been tying for the past 2 days to install Family Safety on these devices with no luck.

I can get the package installed and then get to the login screen. I type my login and then i get and error banner "connection to norton authentication service has failed "

This happens on every device on Wifi and on 3g

Any help would be greatly appreciated 

 

Thanks