Network Troubleshooting for Beginners: The Internet’s Phone Book (DNS)
September 14, 2025
Network Troubleshooting for Beginners: The Internet’s Phone Book (DNS)
Introduction
You’ve gone through all the checks from the previous articles:
- The computer has the correct IP address (
ipconfig). - The router responds (
ping 192.168.1.1). - Ping to a public address (
ping 8.8.8.8) works.
Looks like the internet is fine! But the browser won’t open google.com. 🤔
Welcome to the most common cause of such issues — DNS failures.
What is DNS? 📖
The internet runs on IP addresses (e.g., 142.250.184.110), but people prefer names (google.com).