Samsung UN75ES9000F E-Manual page 112

Samsung recommends using IEEE
802.11n. When you play video over a
network connection, the video may not
play smoothly.
N
To use a wireless network, your TV
must be connected to a wireless IP
sharer (either a router or a modem).
If the wireless IP sharer supports
DHCP, your TV can use a DHCP or
static IP address to connect to the
wireless network.