Connecting to my Xfinity Wi-Fi enables YouTube Restricted Mode

When I connect to my Xfinity Home Wi-Fi on any of my mobile devices the Restricted Mode setting for YouTube automatically turns on. As soon as I logoff of my Wi-Fi and onto either my mobile network, or another Wi-Fi, the Restricted Mode setting for YouTube automatically turns off and stays off until I connect to my Wi-Fi again. I have no Parental Settings enabled on my Xfinity gateway.