How to Fix the DNS Server Not Responding Error on Windows 11

Security • 3 October 2026

Few technical issues interrupt productivity faster than trying to load a webpage only to be met with the dreaded "DNS Server Not Responding" error in Windows 11. Although your Wi-Fi or Ethernet connection might report an active internet signal, your system cannot translate human-readable web addresses (like example.com) into machine-friendly IP addresses.

The Domain Name System (DNS) acts as the phonebook of the internet. When your local system fails to communicate with your configured DNS servers, web browsing comes to a halt. Fortunately, this issue is usually client-side and can be resolved using systematic network troubleshooting.

1. Flush DNS and Reset the Network Stack

Corrupted local cache files or glitchy TCP/IP stack configurations are the primary causes of DNS communication failures on Windows 11. Flushing your cache clears out outdated entries, while resetting Winsock restores basic network protocol bindings.

Follow these steps using elevated Command Prompt:

Press Windows + S, type cmd, right-click Command Prompt, and select Run as administrator.
Type the following commands one by one, pressing Enter after each command:

ipconfig /flushdns
ipconfig /registerdns
ipconfig /release
ipconfig /renew
netsh winsock reset

Once all commands complete successfully, restart your computer to apply the network stack modifications.

2. Switch to High-Performance Public DNS Servers

By default, Windows 11 relies on the DNS servers provided by your Internet Service Provider (ISP). ISP DNS infrastructure is often prone to congestion, downtime, or misconfigurations. Switching to reliable public resolvers like Google Public DNS or Cloudflare significantly improves speed and reliability.

Press Windows + I to open Settings.
Navigate to Network & internet and select your active connection (Wi-Fi or Ethernet).
Click on Hardware properties or select your network details, then locate DNS server assignment and click Edit.
Change the drop-down menu from Automatic (DHCP) to Manual.
Toggle the IPv4 switch to On.
Enter the following addresses:
- Preferred DNS: 8.8.8.8 (Google) or 1.1.1.1 (Cloudflare)
- Alternate DNS: 8.8.4.4 (Google) or 1.0.0.1 (Cloudflare)
Save the settings and verify if web browsing resumes normally. You can review Google Public DNS Documentation for further technical setup instructions.

3. Update or Reinstall Network Adapter Drivers

Incompatible or corrupted network interface card (NIC) drivers frequently block valid network packet transmission. A quick driver refresh can resolve low-level socket errors on Windows 11.

Right-click the Start button and choose Device Manager.
Expand the Network adapters section.
Right-click your main Wi-Fi or Ethernet adapter (e.g., Intel, Realtek, or Qualcomm) and select Update driver.
Choose Search automatically for drivers.

If Windows reports that the best driver is already installed, right-click the adapter again, select Uninstall device, and restart your computer. Windows 11 will automatically reinstall the default network driver upon startup. For official Microsoft advice on adapter troubleshooting, visit the Microsoft Network Troubleshooting Guide.

4. Temporarily Disable Third-Party Antivirus and VPNs

Security software and Virtual Private Networks (VPNs) alter network routing tables and intercept DNS requests via filter drivers. Misconfigured firewalls or security suites often inadvertently block outbound UDP port 53 traffic, which is required for standard DNS queries.

Disable VPNs: Disconnect any active VPN clients (NordVPN, ExpressVPN, WireGuard, etc.) and check if connectivity restores.
Disable Antivirus Web Protection: Temporarily turn off third-party antivirus firewalls or active web filters to see if they are blocking DNS packets.

5. Restart the DNS Client Service

Windows 11 manages domain resolution using a core background process called the DNS Client Service. If this service freezes, your PC will lose the ability to resolve web hostnames.

Press Windows + R, type services.msc, and press Enter.
Scroll down to find DNS Client.
Verify that the status displays as Running. If the option to restart the service is greyed out due to system permissions, restarting the Windows PC or executing net stop dnscache and net start dnscache in an elevated terminal will restart the background service.

Final Considerations

If you have implemented all of the steps above and continue to experience the "DNS Server Not Responding" error, the issue may lie with your physical networking hardware. Power cycle your modem and router by disconnecting power for 30 seconds before reconnecting. If problems persist across multiple devices on the same network, contact your Internet Service Provider to verify local network status and line health.