Hey there Ykar, sorry to hear you're having problems watching Netflix via your TV Box. I've tried to take a look at your TV Box setup but I'm unable to as it's currently not switched on. Can I ask whether you have problems with other Apps on the TV Box such as On Demand and Amazon Prime if you have a subscription? Is it affecting all titles in Netflix or just the one?
It's always best to have your TV Box connected via ethernet and if you're already connected via ethernet we can look at whether there is a broadband issue. However please turn your TV box on so we can take a closer look and try and pin point where the issue may be.