Domain Name System (DNS) errors can disrupt website accessibility and prevent users from reaching desired web destinations.
Most DNS errors stem from configuration problems with network settings, internet service providers, or local computer configurations.
Common DNS error codes include DNS_PROBE_FINISHED_NXDOMAIN, ERR_NAME_NOT_RESOLVED, and DNS_SERVER_NOT_RESPONDING.
Quick DNS Error Troubleshooting Steps
Restart your router and modem to refresh network connections and potentially resolve temporary DNS issues.
Clear browser cache and DNS cache on your computer to eliminate stored problematic network configurations.
- Windows: Use
ipconfig /flushdnscommand - Mac: Use
sudo killall -HUP mDNSRespondercommand - Chrome: Clear browser cache in settings
Advanced DNS Configuration Solutions
Change your DNS server from default ISP settings to reliable public DNS providers like Google DNS (8.8.8.8) or Cloudflare (1.1.1.1).
Verify your network adapter settings and ensure automatic DNS configuration is functioning correctly.
Consider using DNS monitoring tools to track potential recurring resolution problems.
Network Security and DNS
Implement DNS security measures to prevent potential malware and phishing attacks through compromised DNS requests.
Use secure DNS protocols like DNS over HTTPS (DoH) and DNS over TLS (DoT) for enhanced protection.
| DNS Provider | Primary Server | Secondary Server |
|---|---|---|
| Google DNS | 8.8.8.8 | 8.8.4.4 |
| Cloudflare | 1.1.1.1 | 1.0.0.1 |
When to Seek Professional Help
Persistent DNS errors might indicate deeper network infrastructure problems requiring professional network administration.
Contact your internet service provider if DNS issues continue after attempting standard troubleshooting methods.