Samsung PN43F4500AF Manual Del Usuario page 142

If Your TV Fails to Connect to the Internet
If your TV fails to connect to the Internet, read the information below and view the
troubleshooting guide on the following pages.
Your TV may not be able to connect to the Internet because your ISP has permanently
registered the MAC address (a unique identifying number) of your PC or modem, which it
then authenticates each time you connect to the Internet as a way of preventing unauthorized
access. As your TV has a different MAC address, your ISP can not authenticate its MAC
address, and your TV can not connect.
To resolve this problem, ask your ISP about the procedures required to connect devices other
than a PC (such as your TV) to the Internet.
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If your Internet service provider requires an ID or password to connect to the Internet, your
TV may not be able to connect to the Internet. If this is the case, you must enter your ID or
password when connecting to the Internet.
The internet connection may fail because of a firewall problem. If this is the case, contact your
Internet service provider.
If you cannot connect to the Internet even after you have followed the procedures of your
Internet service provider, please contact Samsung Electronics.
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