Router Configuration 101: Connecting the router to the Internet

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I have a D-link router and have a modem with an ISP, and they are all correct, the wires. Make and exact model of the broadband modem. I did some research on that error message, and got a lot of minor problems with quick solutions, the most popular being disabling proxy settings, that did not help me. When he left I proceeded to disconnect the modem from the computer, and add the router to the setup. Create an access list Next, we must determine who the router allows to use NAT to access the Internet using our NAT pool, which we can accomplish by creating an access list. Listing B shows an example.

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My Wireless Says

If you see anything with an exclamation point or red X under network adapters, that might be causing the network connection problems. Download the latest drivers from the manufacturers website on another computer and copy them over using a USB stick or CD.

Update the drivers and restart the computer. Sometimes your wireless network may have MAC address filtering enabled, which means only certain computers can connect to the router. You can quickly tell if this is the case by simple resetting the wireless router to default factory settings. This will remove all security, filtering, port forwarding, or any other settings that could possibly be preventing your computer from connecting to the Internet.

Read my previous post on how to reset your wireless router. Sometimes you simply have to update your laptop hardware drivers for all devices such as the BIOS, firmware, system drivers, etc. The problem may not be related to your wireless network card per say, but on the hardware that your OS is running on. Another issue that can cause connectivity problems to the Internet is unsupported wireless security settings.

Sometimes if you buy a new wireless router and setup security using WPA or some other strong encryption, your wireless card may not support it. In that case, try to turn off all wireless security and see if that solves your problem.

Just click on Start and type in troubleshoot. When you run the troubleshooter, you will see Internet Connections in the list. You can read my post on reset your Windows PC here. Scroll down the appropriate section for your operating system. Another possible issue could be a recent change to your proxy server settings. This process is comparable to connecting a home network to the Internet with a Linksys, Netgear, or D-Link router.

We'll do the same thing with the Cisco router. Before we get started, take a look at Figure A , which you'll recognize from our last article. This offers an illustration of what our example network looks like. Depending on how you want to use your network, a number of ways are available to accomplish this. However, for the purposes of this article, we just want to connect the router to the Internet. To learn more about NAT and related topics, check out these articles: Consumer-based routers typically use NAT overload, which is what we'll use for this example.

Let's look at the step-by-step process for configuring NAT overload. The router needs to be in Global Configuration Mode, and the prompt should look like this: For this example, we're going to overload a single Internet IP address. Since this is the only IP address we have, we'll create a pool with only one IP address in it.

Listing A shows an example. Next, we must determine who the router allows to use NAT to access the Internet using our NAT pool, which we can accomplish by creating an access list. For this example, we'll allow the entire internal network to use NAT to access the Internet.

Listing B shows an example. Now, we must connect the pool and the list of users. We can accomplish this by telling the router that we want to use NAT from the inside using the access list to define our possible source IP addresses and go to the outside using the pool that contains our single Internet IP address. Listing C shows an example. Next, we need to tell the router which interface is the inside and which is the outside.

Last time, we configured IP addresses on the router's two interfaces, letting it know which two networks it connects to. However, it doesn't know what to do with traffic that isn't on these two networks—such as the Web-browsing traffic you'll forward to it.

So, we need to tell the router to send any traffic it doesn't know what to do with to the ISP i. In other words, we need to configure a default route to the ISP. Of course, the IP address should be in the After you've configured this on your PC, you should be able to browse the Internet using the router.

Create an access list

May 29,  · Cannot connect to Internet using Router and Modem I have recently upgraded my desktop version from xp to windows 7. I have a D-link router and have a modem with an ISP, and they are all correct, the wires. Re: Can't connect to the internet through my router not sure if this is the right place to post, but i can't seem to get my router working with the new modem box comcast just installed. i called them out to replace it since the last one died and they gave me a brand new one (ARRIS TC). now, my router just doesn't work on it at all. If the Internet LED is not lit, refer to the router manual to troubleshoot the light status. If you are using a device that is connected to the router using an Ethernet cable, check that the LEDs for the ports with cables are lit.