Hi marcop70,

Thanks for your message. This sounds like the field is losing focus or losing the connection to the router. But just so you know, I support US products and customers. And from what I can tell, this model is for Australia. (Correct me if I'm wrong.) So if you want the most accurate information, here's the Samsung Australia portal for support on that product: http://www.samsung.com/au/support/model/PS60E8000GMXXY

Hope this helps you!

HD Tech