"Gateway Ping which always fails no matter what gateway value I use (10.0.1.1 or 127.0.0.1)"
That's a BIG CLUE. Why can't you let the product get it's IP addresses automatically?
Have a Samsung PN50B860 TV and Samsung BNP3600 both connected to same wired Airport Extreme router (software v-7.4.2) through a gigabit switch (no MAC address access control). The Blu-Ray player always connects fine -- no issues.
The TV passes all network connection tests until it gets to Gateway Ping which always fails no matter what gateway value I use (10.0.1.1 or 127.0.0.1). All other computers on same wired network ping the gateway just fine. Do I need to change something on the Airport Extreme or is this a software issue in the TV network configuration software? Has anyone else had this problem and solved it without a software update?