Samsung UN75ES9000F E-Manual page 504

PC Software on your PC.
N
We recommend you locate both
your TV and PC in the same
network subnet. IP addresses have
four parts, separated by periods
(111.222.333.444). If your TV and PC
are in the same subnet, the first 3
parts of the TV IP address and the
PC IP address (111.222.333) will be
the same and only the last part (the
host address) will be different.