You can’t browse to Google’s search page at http://www.google.com, so you’ve started troubleshooting your connection. Your workstation IP address is 192.168.1.5, your subnet mask is 255.255.255.0, your default gateway is 192.168.1.1, and your domain name servers are 10.2.2.1 and 10.2.2.2. You can successfully ping your local IP address, your default gateway, and Google’s DNS server at 8.8.8.8. Which of these is the most likely cause of this issue?
A) Your Ethernet adapter’s duplex setting is incorrect
B) The default gateway is faulty
C) The Internet connection is down
D) Your DNS servers are faulty
E) Google has decided to change its search engine to be available only on Twitter. #notfeelinglucky
The answer: D) Your DNS servers are faulty
If you can ping Google’s DNS server, then your connection to the Internet is working properly. However, if your DNS server isn’t converting your domain names to IP addresses, then your computer won’t know the IP address of the web server and your computer won’t even try to send traffic out to the Internet.
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Want to know more? Watch “Command Line Troubleshooting.”The Windows command line can be a powerful troubleshooting environment if you know what to type. In this video, you’ll learn the important commands that will allow you to manipulate files, format disks, troubleshoot the network connection, and much more. |