How Do I Fix DNS Issues? A Complete Troubleshooting Guide

After spending 8 years as a network administrator supporting over 2,000 users, I’ve resolved countless DNS problems. The good news? Most DNS issues have simple fixes that take less than 5 minutes. Just last month, I helped my neighbor who thought her internet was “completely broken”—turns out it was just a DNS problem that required changing two numbers in her network settings. This guide walks you through identifying and fixing DNS problems using the same methodical approach I use professionally.