My Laptop Has No DNS Suffix or Default Gateway
If your laptop lacks a default domain name server or DNS gateway or suffix and you haven't set one that it should use, it isn't able to load pages within your Web browser. Resolving this problem involves a simple adjustment of Windows settings. If you don't want to use the DNS gateway your computer automatically assigns you, you can use a public DNS gateway by default.
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Indications
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It is clear immediately when an problem exists with your computer's DNS gateway or suffix. The Web browser displays an error upon attempting to load any Web page for which the DNS was not found or is not available. It's important to understand that individual websites may experience DNS errors, so if you aren't able to replicate this error, the DNS problem is with the website, rather than your computer.
TCP/IP Settings Menu
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You can manage your computer's DNS information via the TCP/IP Settings menu, located within the Windows Control Panel. To access the menu, launch the Control Panel via the Start menu, then type "Adapter" into the Search box. Click the View Network Connections option, then right-click your primary Internet connection and choose Properties.
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Automatic Default Gateway
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The surest way to prevent DNS trouble—in other words, to ensure that your computer always has a DNS gateway—is to set the option to adopt your ISP's gateway automatically. After you have right-clicked the connection you use, select the Obtain an IP Address Automatically option, then click "OK." Close out of any Web browsers you have open and then restart to apply the changes.
Public DNS
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An alternate option—to be used if, for example, your default DNS gateway is buggy or doesn't work—is to input a public DNS address within the Properties interface for the default connection you use. For example, Google offers two public DNS gateways, 8.8.8.8 and 4.4.4.4. Alternatively, you can use the OpenDNS public DNS gateway, which is 208.67.222.222.
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