Checking Your Network Configuration
If the Error Log and Device Manager report no obvious network problems, you should check to be sure that your computer or computers are configured properly; an incorrect setting can certainly mean the difference between networking and net-not-working. In this section, I'll describe several ways to check whether Windows is correctly configured. You'll notice that several of the tools provide the same information; you can check them all out and choose the tools that you like best.
Ipconfig
If your computer can't communicate with other computers on your LAN, after you check the Event Log and Device Manager, you can use the ipconfig command-line utility to be sure your computer has a valid IP address. Check others ...
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