Carlo Reggiani

I'm using a TP-Link AV600 powerlan repeater with lan port, tryed today to connect by cable directly to the router, the connect/disconnect problem is still there. I have also the wifi setting disabled,no way to enable wifi... I'm reading about hardware connection problems, but I think could be a software problem. Any LG rappresentative is reading here? Any new firmware to fix this terrible bug???? LG 55UH605V - firmware 05.30.85