said by ttodd :No I have been a paid subscriber for maybe 23 months prior to me changing the DNS .
I believe he meant the DNS subscription service such as unblock-us.com. You get a 30 day trial and after that require a paid subscription or you lose access to the DNS server (the thing your son changed on your player)
If you can bring up the network settings on your device (should be accessed through the menu, probably under Network) and post the results for us here, we can help to diagnose this, and/or provide you the details for switching is back to default (canadian netflix) if you do not wish to buy a subscription to the DNS service you used.