How to Fix DNS Server Not Responding Error in Simple Steps

If you’ve ever been greeted by the message “DNS Server Not Responding” while trying to browse the web, you’re not alone.

This common error means your device can’t reach the DNS server that translates domain names (like www.google.com) into IP addresses, making it impossible to access websites.

The good news? Fixing it is often easier than it sounds. In this guide, we’ll walk you through simple, effective steps to troubleshoot and resolve the issue—so you can get back online in no time.

Common Reasons to Explore

Here are some of the most frequent causes behind the “DNS Server Not Responding” error:

• Router or ISP Issues: A router’s cache can overload, or your ISP’s DNS might be down.
• Security Software Conflicts: Overly aggressive antivirus or firewall settings may block DNS.
• Corrupted DNS Cache: Old data can direct you to the wrong IP addresses.
• Outdated Drivers: Network adapters need frequent updates for optimal performance.

Fix the “DNS Server Not Responding” Error: Quick Troubleshooting Steps to Follow

Wondering how to fix the “DNS Server Not Responding” error? Start with these quick, easy fixes:

• Switch Browsers: If Chrome fails, try Firefox or Edge.
• Test Another Device: If multiple devices on the same network see the same issue, the router or ISP could be at fault.
• Restart Your Computer: A reboot can fix minor glitches and is often a quick way to address how to fix the DNS server not responding.

If the basic checks didn’t work, don’t worry. Here are more in-depth solutions you can try to restore your internet connection.

1.  Restart Router or Modem

A proven tactic is rebooting your router and modem. Turn them off, unplug, and wait 30 seconds. After reconnecting, let them fully power up. This refreshes their internal cache. Many people find this solves DNS issues promptly, especially if the hardware has been running nonstop for weeks.

2.  Flush and Renew DNS Cache

Corrupted DNS records can block valid sites. 

• On Windows, open Command Prompt (Admin) and type:
  • ipconfig /flushdns
  • ipconfig /release
  • ipconfig /renew
• On macOS, use:
  • sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

Clearing old entries is an essential step in how to fix a DNS server not responding. Once done, test a familiar site to confirm improvement.

3.  Change the DNS Server Address

If your ISP’s DNS is down or unreliable, switching to a public DNS provider is a proven fix for the “DNS Server Not Responding” error. Two trusted options are:

• Google DNS: 8.8.8.8 and 8.8.4.4
• Cloudflare DNS: 1.1.1.1 and 1.0.0.1

To update your settings:

• Go to your IPv4 network settings.
• Select “Use the following DNS server addresses.”
• Enter the new DNS values.
• Save and restart your connection.

Once applied, check if your browsing experience improves. Public DNS servers are often faster, safer, and more reliable than default ISP options.

4.  Disable IPv6

Though IPv6 is modern, it occasionally conflicts with DNS. Temporarily turn off IPv6 in Windows adapter settings or under macOS Network preferences. If this resolves the DNS error, keep IPv6 disabled unless a specific service requires it.

5.  Turn Off Antivirus or Firewall Briefly

Some security programs can overblock DNS requests. Disable your antivirus or firewall momentarily to see if the error goes away. If so, add DNS exceptions to your security software. Remember to reactivate protection once you are done, as you don’t want to leave your device vulnerable for long.

6.  Update Network Adapter Drivers

Outdated drivers often cause the “DNS server not responding” error. On Windows, head to Device Manager, expand Network Adapters, right-click your adapter, and select Update driver. Mac users should keep system updates current via Software Update.

New drivers can drastically reduce network hiccups and are vital in fixing DNS server errors.

7.  Reset Network Settings

If problems persist, reset your network settings.

On Windows, run:

• netsh winsock reset
• netsh int ip reset

Then reboot. Mac users can remove and re-add their network interface under System Preferences > Network. This wipes problematic configurations so you can start fresh.

8.  Disable Secondary Connections

Having multiple active network interfaces—like both Ethernet and Wi-Fi—can cause conflicts and trigger DNS errors. To avoid this, disable any secondary or unused connections.

• On Windows: Press Win + R, type ncpa.cpl, and press Enter. Right-click and disable all connections except your primary one.
• On macOS: Go to System Settings > Network, and disable any extra network interfaces.

Sticking to a single active connection helps streamline DNS resolution and reduces potential conflicts.

9.  Boot into Safe Mode

Safe Mode uses minimal drivers, which helps isolate third-party interference. On Windows, hold Shift while clicking Restart, then choose Safe Mode with Networking. On macOS, hold Shift during startup.

If your DNS is operating in Safe Mode, look into any recently installed programmes or security suites that might be preventing traffic from passing through.

Additional Tips to Check Out

If you often find yourself facing the “DNS Server Not Responding” error, these extra tips can help you prevent it from happening again—or make it easier to fix next time:

• Monitor Router Health: Update firmware and ensure proper ventilation.
• Check ISP Announcements: DNS issues can be provider-related.
• Keep Browsers Updated: Modern browsers handle DNS better.
• Limit Network Overload: Excess traffic may slow DNS resolution.
• Run System Troubleshooters: Built-in tools often detect misconfigurations quickly, pinpointing core DNS or network problems.

Wrapping Up

Knowing how to fix the “DNS Server Not Responding” error can spare you needless frustration. Each tactic pinpoints a likely culprit, from rebooting hardware and flushing DNS caches to updating drivers or switching DNS providers.

If problems persist, contact your ISP or verify if they are having outages. Sometimes, waiting for server maintenance to finish may be necessary. 

For a smoother, more reliable online experience, Crazy Domains offers robust hosting services and expert support. We help you get your domain online and keep it running with stable DNS infrastructure, simple tools, and easy-to-follow guidance.