You need to use WPA2 AES personal security as well as be within 20 feet PLUS check with Samsung if this supports that wifi band.
I have the n600 Netgear dual band router, but my Samsung 32PFL4907 only sees the 2.4 ghz signal. I know the 5.0 ghz signal is brodcasting because i can see it and connect to it with my iPad.
Does Samsung have either a firmware upgrade or an upgraded dongle that will detect the 5.0 GHz signal?
I already tried a 3rd party dongle, but it did not work