You probably have bandwidth issues on the TV. I have mine (an LG) hardwired to the router and have no problems (except when I speaking with my brother when he is wireless in his cellar). Make sure all wireless connections have good reception.
As an added bonus, 2013 is a peak sunspot year in the sun's 11 year cycle. Expect wireless issues - I doubt that developers have hardened the equipment for this issue - what fun for tech support!