Now that we have established troubleshooting the physical layer of the OSI Model, we need to move on to the network layer where all the IP addressing takes place. The datalink layer was skipped because MAC addressing usually isn’t the problem. To troubleshoot the Network Layer we should do the following:
To view your network connection details go back to the previous step where you retrieved your connection status. Once you are viewing the connection status click on Details. You should now see the details of your network connection as illustrated below.
Next, do you have an IP address? Do you have a default gateway assigned? Are the DNS servers configured properly? Is the subnet mask correct?
If you do not have an IP address assigned to the machine you won’t be able to navigate the local area network (LAN) or the wide area network (WAN). An IP address is needed for that. You also need a default gateway to reach the outside world (WAN) and DNS server addresses to transform IP addresses (220.127.116.11) into something like www.seo-webz.com. You can use IP config to renew or obtain an IP address. Or you could statically assign the IP address, the default gateway address and the DNS server addresses.
To use IP config to obtain an automatic IP address try the following:
While holding down the WinLogo key on your keyboard press R on your keyboard. In the run box type cmd and click Ok. In the black DOS box that appears type in ipconfig /all and press Enter on your keyboard. You should now see information as illustrated below.
If your IP address is 0.0.0.0 or has the generic address of 18.104.22.168 or something similar then try renewing the address with the following command ipconfig /renew. That should solve your problem.
To give your computer a static IP address try the following:
Continue on to Step 3 of how to troubleshoot networking issues in vista.
Go back to Step 1 of how to troubleshoot networking issues in vista.