Every once in a while Netflix grinds to a halt on my 42W815.

It loads up to 25% and then stops. I then have to come out and go back in a couple of times before it starts working. This is my 2nd set where this has happened - it doesn't happen via my PS4 or Sony Bluray player.

Any ideas what might be going on? Does Netflix have to route via some Sony servers/network?