When buying your router, be sure the model includes everything your network needs, including:
•Internet security features, such as a firewall, to protect your network from unwanted intruders
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•DHCP server/dynamic IP address assignment to automatically configure network and IP addresses
Determining if an Ethernet card is already installed on your computer
To determine if an Ethernet card is already installed on your computer:
1Click 
(Start), then click Control Panel. The Control Panel window opens.
2Click System and Maintenance, then click System.
3Click Device Manager from the task list on the left. The Device Manager window opens.
4Click the plus (+) in front of Network adapters. The Ethernet device installed in your computer is listed. If one is not listed, you must install one.
Setting up wired Ethernet network hardware
Making sure your broadband connection works Important
If you do not have a broadband connection already installed, make the necessary arrangements with your ISP. Be sure to find out how soon after the installation the line will be activated.
Broadband Internet settings differ from ISP to ISP. Before you begin setting up your network, you should contact your ISP for any specific instructions they have for setting up a network.
Before you change anything about your home setup, make sure that your broadband connection is working correctly. To test the connection, log onto the Internet using your current setup. If the connection is not working, contact your Internet service provider.
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