Unlike any other muaufacturer of internet access equipment LG dont provide any mechanism to update their browser or use Adobe Flash. So, as sites update their flash player or their security software your LG "smart" tv will drop those sites, you will end up having access to fewer and fewer sites and will be unable to access new ones. LG seem to think that its not there fault!!????????
My advice if you have just wasted your cash is to unplug it a take it back, your problems are just begining!...Buy one with Google Chrome or anything that is widely known to the ouside world that can obviously be updated.