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How to Fix DNS Server Not Responding

✅ Quick Answer

If your browser shows “DNS server not responding,” the issue is usually caused by a wrong DNS server, corrupted DNS cache, router problems, or network adapter issues. Fixing it is simple: restart your router, clear DNS cache, change DNS server to Google DNS or Cloudflare, and reset network settings.

❓ Why DNS Server Stops Responding?

DNS (Domain Name System) translates website names like techfixandguides.com into IP addresses. When DNS fails, your computer cannot find the website even though the internet connection may still be working.

The DNS server may stop responding due to router issues, ISP DNS downtime, corrupted DNS cache, or incorrect network settings. Sometimes malware or VPN software also changes DNS settings causing this error.

🔧 Fix 1: Restart Router & PC

Restarting clears temporary glitches in router and PC network stack.

  1. Turn off your PC.
  2. Unplug the router and modem.
  3. Wait 30 seconds.
  4. Plug in modem first, then router.
  5. Turn on PC and test the internet.

Screenshot idea: Router power cycle and internet light turning green.

🔧 Fix 2: Flush DNS Cache

DNS cache stores website addresses. Corrupted cache can cause DNS errors.

  1. Open Command Prompt as Administrator.
  2. Type:
ipconfig /flushdns

After flushing, restart the browser and try again.

🔧 Fix 3: Change DNS Server (Google DNS / Cloudflare)

Using a reliable public DNS server often fixes the issue instantly.

  1. Open Control Panel → Network and Sharing Center.
  2. Click Change adapter settings.
  3. Right-click your network adapter → Properties.
  4. Select Internet Protocol Version 4 (TCP/IPv4) → Properties.
  5. Select Use the following DNS server addresses.
  6. Enter:

🔧 Fix 4: Reset Network Adapter

Resetting the network adapter removes corrupted settings and restores default configuration.

  1. Open Settings → Network & Internet → Status.
  2. Scroll down and click Network reset.
  3. Click Reset now and restart your PC.

🔧 Fix 5: Update Network Adapter Driver

Outdated or corrupted drivers can cause DNS errors. Updating driver often fixes it.

  1. Right-click Start and open Device Manager.
  2. Expand Network adapters.
  3. Right-click your adapter → Update driver.
  4. Choose Search automatically.
  5. Restart PC after update.

❓ Frequently Asked Questions

What is DNS server not responding error?

It means your PC cannot reach the DNS server to translate website names into IP addresses.

Can a VPN cause DNS errors?

Yes. VPN software can change DNS settings and sometimes block DNS requests. Disable VPN and check.

Is changing DNS safe?

Yes, using Google DNS or Cloudflare DNS is safe and often faster than ISP DNS.

🔗 Related Guides

Last updated: January 2026 • Techfix&Guides