Troubleshooting Wireless Internet Connectivity Issues - Samsung UA40JU6400 E-Manual

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
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.

Troubleshooting wireless Internet connectivity issues

Wireless network connection failed
If a selected wireless router is not found, go to
Unable to connect to a wireless router
1.
Check if the router is turned on. If it is, turn it off and on again.
2.
Enter the correct password if required.
IP Settings.
Network Settings and select the correct router.