The IP/GATEWAY DNS settings should be located in the Network Settings within the settings of the player. Have you completed all of the troubleshooting steps in the following link? http://www.samsung.com/us/support/troubleshooting/TSG01110565/
I had mine working for about a week, came home one night and now it won't connect. I have tried all the of the suggested fixes several times and still nothing. Is this a defect of this model? Any other suggestions? I use it to watch Netflix
Please make sure that your router is in at least 15 feet from your player, if the signal is too far away from the unit other devices could potential be interfering with the signal and causing intermittent connectivity symptoms.