Yes, that's a fail. You notice how your nameserver isn't working, right? That was what the complaint was. You cannot just shove random crap into the configuration and expect it to magically populate elsewhere as needed. Your screenshot clearly displays that fail: you can get to the Internet because you've got the static default route configured, but you cannot resolve names because you have no nameserver configured. Merely giving the NAS a gateway IP address will not magically make name resolution work.
You MUST have a nameserver configured for global name resolution to work. To do that, you have to configure more than just a default gateway. I'm not quite sure why this point seems hard to comprehend, since it's been presented by several forum members.