Samsung UA48J5300AR E-Manual page 36

Unable to connect to the network
Do the following:
1.
IP Settings.
Check all
2.
Ensure that the DHCP server is enabled on the router. Then, unplug the router and plug it back in.
3.
If this does not work, contact your Internet Service Provider for more information.
Connected to a local network, but not to the Internet
1.
Make sure that the Internet LAN cable is connected to the router's external LAN port.
2.
Check the DNS values in the
3.
If the problem persists, contact your Internet Service Provider.
Network setup is complete, but unable to connect to the Internet
If the problem persists, contact your Internet Service Provider.
IP Settings.