All my TCP/IP settings are correct, but when I try to connect anywhere, nothing happens.

This could be caused by you already being authenticated in another location. Click here to de-authenticate your computer and then attempt to connect again.

This is usually caused by an incorrect IRQ setting in your drivers. Check your cards IRQ settings using the utility that came with your card and verify that it is the same as the IRQ that Windows thinks it has.  A test that usually works to verify that it is an IRQ problem is as follows: go to Start->Run and type "command" in the box.  This will open a dos prompt.  In here, type "ping netpeep".  If it says "bad IP address netpeep" then your IRQ is probably set incorrectly.

Make sure that the TCP/IP settings you entered were for your Ethernet card and not for your wireless.

This could also be a driver problem.  Go to Start->Settings->Control Panel and select the System icon in there.  Then select the Device Manager tab at the top of the window.  There should be a section called Network Adapters.  Check to see if there are exclamation points or question marks next to any of the devices, or if there are several of the same device listed.   If this is the case, you can remove the device, reboot and have Windows redetect the card properly, or try to reinstall the driver.  For more information on how to install the drivers, see the Ethernet Installation Guide.

I checked my IRQ, but there was nothing wrong and it still doesn't work.

Look at the back of your Ethernet card. There should be two lights, one is the link light and the other is the activity light. One of the lights should be on, and the other should blink occasionally. If the link light (the constant one) is not on, check to make sure that your Ethernet cable is plugged in. If it is plugged in, and you don't get a link light, your Ethernet cable is probably bad, try with a new cable to see if this fixes your problem.

Try reinstalling your network card software. Sometimes Windows will not find a particular driver that it needs for the network card to work. By reinstalling the network software, the driver will be placed in its appropriate spot.

Try moving your card to another slot. Slots on motherboards do tend to go bad every once in a while. Moving the network card to another slot will fix this problem.

I've checked all this, but I still can't connect.

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