If you see a “DNS server not responding” error in Windows 11, your computer cannot translate website names into internet addresses. This is a common workplace network issue usually caused by DNS configuration problems, network adapter errors, or temporary connection failures.
Quick Checks Before Advanced Fixes
- Restart your computer
- Restart your router or network connection
- Disconnect and reconnect to Wi-Fi or Ethernet
- Try opening a different website
- Disable VPN temporarily if connected
Fix 1: Restart Network Adapter
- Open Settings
- Go to Network & Internet → Advanced network settings
- Select Disable on your network adapter
- Wait 10 seconds
- Click Enable again
Fix 2: Flush DNS Cache
- Right-click the Start button
- Select Windows Terminal (Admin)
- Type the following command:
ipconfig /flushdns
- Press Enter
- Restart your browser and test internet access
Fix 3: Change DNS Server Address
- Open Control Panel → Network and Sharing Center
- Click Change adapter settings
- Right-click your network connection → Properties
- Select Internet Protocol Version 4 (IPv4)
- Use these DNS servers:
- Preferred DNS: 8.8.8.8
- Alternate DNS: 8.8.4.4
- Click OK and reconnect to the network
When to Contact IT Support
If the DNS error continues after these steps, the issue may be related to company network policies, firewall settings, or ISP outages. Contact your IT support team for assistance in workplace environments.
Final Thoughts
DNS server errors in Windows 11 are usually caused by temporary network configuration problems. Resetting adapters and refreshing DNS settings typically restores internet connectivity quickly.
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