Samsung UN55EH6030 E-Manual page 59

The check list for wired network connection failure
When wired network connection failed, try to apply the following information to
each issue,
No network cable found.
IP auto setting failed.
• Check that your network cable is plugged in.
• If it is connected, make sure that the router is turned on; if it is on, try
turning it off and on again.
Try the following to set your IP address automatically or set your IP
address manually by selecting _P Settings.
,, Ensure DHCP server is enabled on router and unplug and re-plug-in
the router.
• Contact your Internet Service Provider for more information.