Samsung UE19ES4000W E-Manual page 87

If Your TV Fails to Connect to the Internet
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.
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.
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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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