Back to the shop, not to LG. If they can't fix it, it's no sale.
DONT BUY ANY LG SMART TV'S GUYS, THEY OFTEN HAVE DNS NETWORK ERRORS THEN U RING LG AN THEY SAY ITS YOUR ROUTER . ITS NOT, ITS THE CRAP TV, IT DONT EVEN RECOGNISE I HAVE ETHERNAQT CABLE IN £900 QUID LMFAO LG DONT WANT TO HELP GOT 5 YEAR GARUNTEE, YET HAD 5 YV'S THE SAME MODEL SINCE 23/12/15, THEY R CRAP!!!