If you read the Samsung sticky at the top of this forum, it has an idea or area you must be in control of.
You may have other issues such as the need to set it up as if it was right out of the box.
A friend had an old HP LaserJet 4050 wired to a Linksys 160N router. They use Time-Warner service and had the standard Motorola Surfboard modem. They have four computers on that network, two wired and two wireless. One of the wireless devices is a MacBook the other three are all running Windows 7.
They recently added Digital Phone to the Time Warner account so Time Warner came and swapped out their modem for an Arris combo modem/router. Now all the computers are connecting fine but they can't see the printer. The printer is wired to the new modem/router combo box and has an IP address. Yet none of the computers can ping the printer let alone print.
Before I chalk it up to an incompatibility between the old printer and the new modem/router, I wanted to see if anyone had any thoughts on this. I disabled all the firewalls and security software temporarily and the firewall in the modem/router was already disabled.
Any suggestions would be appreciated. Thanks.