Orbi RBR20 won’t let us open unsecured websites

Our Orbi won’t let us open websites, unless they have the “HTTPS://“. It also gives us an error “404 - website not found”, or it gives us a login screen where it is asking for a username / password to “login” to the website. I’ve attached a screen shot of this....These issues all seem to happen mostly for websites that start “www.” But when we go into the toolbar and add “HTTPS://“ then the Orbi lets us open them just fine. This is really annoying and frustrating! And help would be really appreciated! Thanks all :)