I have read several forums over the past few days trying to resolve the gateway ping error.
I personally have spent numerous, life wasting hours trying to resolve this issue, and this is what I've come up with...
I've tried just about every suggestion I've come across:
Taking down firewalls
Opening ports (port range forwarding)
Turning off/on router/modem/BD player
Doing hard resets
Calling ISP (Comcast - no help)
Calling router manufacturer (Linksys - they tried to help)
Calling Samsung (three times - no help at all)
Adding Mac addresses
Making server names without spaces
Setting channels to every station from 1 to 11
Tweaking every little system possibility between the BD player and the router
And dozens of other little things that have been lost in the haze of dealing with this ridiculous gateway ping error...
My router was a Linksys WRT110. The more forums I read, I began to see a pattern of people having problems with certain routers - namely Linksys and Belkin. For whatever reason, they seem to have a harder time with the gateway ping.
I went to Fry's and purchased a new D-Link DIR-655 for a hundred bucks. After installing it and getting my house back on wifi I was able to finally get the bluray to work, and yes, Netflix is streaming beautifully.
What ultimately got it to pass the gateway ping was the PIN NUMBER. The pin number was something that popped up on the TV after the bluray jumped on the house wifi system. It is an eight digit number that you can view when you search for a server on the bluray system. When you click on the server three choices (at least for me) popped up - one of which was PIN. Choosing that and it will show you a unique pin number for your unit - write it down.
I then went back to my computer to the D-Link page (192.168.0.1). After you sign in, go to: Advanced - WiFi Protected Setup - Add Wireless Device to WPS - Follow instructions for adding a wireless system PIN. SAVE.
I'm assuming that this PIN number will work with any router, also assuming they allow you to type in a PIN somewhere.
Run your network test on the BD player, and you should pass with flying colors.
Lessons learned: Lynksys doesn't work with the BD1600 (at least mine didn't). Samsung was little to no help. Streaming Netflix is badass.
Thanks to everyone who posted suggestions in all the forums. Hopefully this will help a few people beat the gateway ping nightmare.