How to Fix DNS Server Not Responding on Windows 11

How to Fix DNS Server Not Responding on Windows 11

If your internet suddenly stops working and Windows shows the error “DNS Server Not Responding”, don’t panic. This is one of the most common network issues in Windows 11 and usually happens because of DNS configuration problems, router glitches, outdated drivers, or temporary network failures.

In many office and home environments, this issue appears after Windows updates, router restarts, VPN installations, or ISP-side DNS problems.

What Does “DNS Server Not Responding” Mean?

DNS (Domain Name System) acts like the internet’s phonebook. It converts website names like google.com into IP addresses that computers understand.

When the DNS server stops responding, websites cannot load even if your internet connection is technically active.

Common Signs of This Issue

  • Websites not opening
  • Browser showing DNS errors
  • Wi-Fi connected but no internet
  • Apps unable to access online services
  • Intermittent internet connection

Method 1: Restart Your Router and PC

This sounds basic, but temporary DNS glitches are extremely common.

  1. Turn off your router for 30 seconds.
  2. Restart your Windows 11 PC.
  3. Reconnect to the network.

Admin Note: In many cases, ISP-provided routers cache bad DNS responses. Restarting clears the temporary cache.

Method 2: Run Windows Network Troubleshooter

  1. Open Settings.
  2. Go to System > Troubleshoot > Other troubleshooters.
  3. Run the Internet Connections troubleshooter.

Windows may automatically detect and repair DNS-related settings.

Method 3: Flush DNS Cache

Corrupted DNS cache can prevent websites from loading properly.

Open Command Prompt as Administrator and run:

ipconfig /flushdns

You should see the message:

Successfully flushed the DNS Resolver Cache.

Method 4: Reset Network Settings

If DNS settings are corrupted, resetting the network stack often fixes the problem.

Run these commands one by one in Command Prompt as Administrator:

netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew

Restart your PC after running the commands.

Method 5: Change DNS Server Manually

Sometimes your ISP’s DNS server becomes slow or unstable. Switching to public DNS servers can improve reliability.

Google DNS

Preferred DNS: 8.8.8.8
Alternate DNS: 8.8.4.4

Cloudflare DNS

Preferred DNS: 1.1.1.1
Alternate DNS: 1.0.0.1

How to Change DNS in Windows 11

  1. Open Settings.
  2. Go to Network & Internet.
  3. Select your active connection.
  4. Click Edit DNS Settings.
  5. Choose Manual.
  6. Enter the DNS addresses above.

Method 6: Disable VPN or Proxy

VPN software and proxy settings can sometimes interfere with DNS requests.

  1. Disconnect VPN temporarily.
  2. Disable proxy settings.
  3. Test internet connection again.

Method 7: Update Network Drivers

Outdated network drivers can cause DNS failures and packet loss.

  1. Right-click the Start button.
  2. Open Device Manager.
  3. Expand Network Adapters.
  4. Right-click your adapter.
  5. Select Update Driver.

Method 8: Disable IPv6 Temporarily

Some routers and ISPs may have compatibility issues with IPv6.

  1. Open Network Connections.
  2. Right-click your network adapter.
  3. Select Properties.
  4. Uncheck Internet Protocol Version 6 (TCP/IPv6).

Check if the issue is resolved.

When This Issue Commonly Happens

  • After Windows updates
  • After changing routers
  • After VPN installation
  • ISP DNS outages
  • Driver corruption
  • Network profile reset issues

Final Thoughts

The “DNS Server Not Responding” error in Windows 11 is usually caused by temporary DNS failures, router problems, or incorrect network settings.

In most cases, flushing DNS cache, resetting network settings, or switching to Google DNS or Cloudflare DNS fixes the problem quickly.

FAQs

Why is DNS not responding even when Wi-Fi is connected?

Your internet connection may still be active, but DNS translation is failing, preventing websites from loading.

Is changing DNS safe?

Yes. Public DNS servers like Google DNS and Cloudflare DNS are widely used and safe.

Can antivirus software cause DNS issues?

Yes, some security software or firewall configurations may interfere with DNS traffic.

Does restarting the router fix DNS problems?

Yes, router restarts can clear temporary DNS cache and reconnect to the ISP properly.

Related: Fix Slow Internet on Windows | Ethernet Connected But No Internet | Microsoft Fix It Tool Guide

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